1648017274 has 4 divisors (see below), whose sum is σ = 2472025914. Its totient is φ = 824008636.

The previous prime is 1648017271. The next prime is 1648017277. The reversal of 1648017274 is 4727108461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4727108461 = 2053 ⋅2302537.

It is an interprime number because it is at equal distance from previous prime (1648017271) and next prime (1648017277).

It can be written as a sum of positive squares in only one way, i.e., 1647791649 + 225625 = 40593^2 + 475^2 .

It is a super-4 number, since 4×1648017274⁴ (a number of 38 digits) contains 4444 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 not an unprimeable number, because it can be changed into a prime (1648017271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412004317 + ... + 412004320.

Almost surely, 2^1648017274 is an apocalyptic number.

1648017274 is a deficient number, since it is larger than the sum of its proper divisors (824008640).

1648017274 is an equidigital number, since it uses as much as digits as its factorization.

1648017274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824008639.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 1648017274 is about 40595.7790170357. The cubic root of 1648017274 is about 1181.1922437015.

The spelling of 1648017274 in words is "one billion, six hundred forty-eight million, seventeen thousand, two hundred seventy-four".