649574474 has 8 divisors (see below), whose sum is σ = 974514720. Its totient is φ = 324736236.

The previous prime is 649574473. The next prime is 649574501. The reversal of 649574474 is 474475946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (649574473) 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, 6854 + ... + 36689.

It is an arithmetic number, because the mean of its divisors is an integer number (121814340).

Almost surely, 2^649574474 is an apocalyptic number.

649574474 is a deficient number, since it is larger than the sum of its proper divisors (324940246).

649574474 is a wasteful number, since it uses less digits than its factorization.

649574474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51004.

The product of its digits is 3386880, while the sum is 50.

The square root of 649574474 is about 25486.7509502486. The cubic root of 649574474 is about 866.0500347113.

The spelling of 649574474 in words is "six hundred forty-nine million, five hundred seventy-four thousand, four hundred seventy-four".