648604324 has 24 divisors (see below), whose sum is σ = 1209616128. Its totient is φ = 303600000.

The previous prime is 648604291. The next prime is 648604337. The reversal of 648604324 is 423406846.

It is a super-2 number, since 2×648604324² = 841375138222993952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70677 + ... + 79324.

It is an arithmetic number, because the mean of its divisors is an integer number (50400672).

Almost surely, 2^648604324 is an apocalyptic number.

It is an amenable number.

648604324 is a deficient number, since it is larger than the sum of its proper divisors (561011804).

648604324 is a wasteful number, since it uses less digits than its factorization.

648604324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150075 (or 150073 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

The square root of 648604324 is about 25467.7114009092. The cubic root of 648604324 is about 865.6186666360.

The spelling of 648604324 in words is "six hundred forty-eight million, six hundred four thousand, three hundred twenty-four".