1974350641 has 4 divisors (see below), whose sum is σ = 2090488932. Its totient is φ = 1858212352.

The previous prime is 1974350603. The next prime is 1974350657. The reversal of 1974350641 is 1460534791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1460534791 = 761 ⋅1919231.

It can be written as a sum of positive squares in 2 ways, for example, as 1401753600 + 572597041 = 37440^2 + 23929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1974350641 is a prime.

It is a super-2 number, since 2×1974350641² = 7796120907234221762, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1974350594 and 1974350603.

It is not an unprimeable number, because it can be changed into a prime (1974350141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58069120 + ... + 58069153.

It is an arithmetic number, because the mean of its divisors is an integer number (522622233).

Almost surely, 2^1974350641 is an apocalyptic number.

It is an amenable number.

1974350641 is a deficient number, since it is larger than the sum of its proper divisors (116138291).

1974350641 is a wasteful number, since it uses less digits than its factorization.

1974350641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116138290.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 1974350641 is about 44433.6656264144. The cubic root of 1974350641 is about 1254.5118318516.

The spelling of 1974350641 in words is "one billion, nine hundred seventy-four million, three hundred fifty thousand, six hundred forty-one".