649176432 has 20 divisors (see below), whose sum is σ = 1677039240. Its totient is φ = 216392128.

The previous prime is 649176421. The next prime is 649176481. The reversal of 649176432 is 234671946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6762207 + ... + 6762302.

It is an arithmetic number, because the mean of its divisors is an integer number (83851962).

Almost surely, 2^649176432 is an apocalyptic number.

It is an amenable number.

649176432 is an abundant number, since it is smaller than the sum of its proper divisors (1027862808).

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

649176432 is a wasteful number, since it uses less digits than its factorization.

649176432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13524520 (or 13524514 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 649176432 is about 25478.9409513033. The cubic root of 649176432 is about 865.8731010733.

The spelling of 649176432 in words is "six hundred forty-nine million, one hundred seventy-six thousand, four hundred thirty-two".