649757152 has 24 divisors (see below), whose sum is σ = 1395501912. Its totient is φ = 295344000.

The previous prime is 649757137. The next prime is 649757183. The reversal of 649757152 is 251757946.

It is a super-2 number, since 2×649757152² = 844368713150302208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922599 + ... + 923302.

It is an arithmetic number, because the mean of its divisors is an integer number (58145913).

Almost surely, 2^649757152 is an apocalyptic number.

It is an amenable number.

649757152 is an abundant number, since it is smaller than the sum of its proper divisors (745744760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649757152 is a wasteful number, since it uses less digits than its factorization.

649757152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845922 (or 1845914 counting only the distinct ones).

The product of its digits is 529200, while the sum is 46.

The square root of 649757152 is about 25490.3344819169. The cubic root of 649757152 is about 866.1312127061.

It can be divided in two parts, 64975 and 7152, that added together give a palindrome (72127).

The spelling of 649757152 in words is "six hundred forty-nine million, seven hundred fifty-seven thousand, one hundred fifty-two".