1974882493 has 4 divisors (see below), whose sum is σ = 1985793628. Its totient is φ = 1963971360.

The previous prime is 1974882473. The next prime is 1974882587. The reversal of 1974882493 is 3942884791.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36505764 + 1938376729 = 6042^2 + 44027^2 .

It is a cyclic number.

It is not a de Polignac number, because 1974882493 - 2⁹ = 1974881981 is a prime.

It is a super-2 number, since 2×1974882493² = 7800321722315790098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1974882463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5455296 + ... + 5455657.

It is an arithmetic number, because the mean of its divisors is an integer number (496448407).

Almost surely, 2^1974882493 is an apocalyptic number.

It is an amenable number.

1974882493 is a deficient number, since it is larger than the sum of its proper divisors (10911135).

1974882493 is a wasteful number, since it uses less digits than its factorization.

1974882493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10911134.

The product of its digits is 3483648, while the sum is 55.

The square root of 1974882493 is about 44439.6500098729. The cubic root of 1974882493 is about 1254.6244688389.

The spelling of 1974882493 in words is "one billion, nine hundred seventy-four million, eight hundred eighty-two thousand, four hundred ninety-three".