676405632 has 64 divisors (see below), whose sum is σ = 2053382400. Its totient is φ = 193257984.

The previous prime is 676405619. The next prime is 676405633. The reversal of 676405632 is 236504676.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676405633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123132 + ... + 128507.

It is an arithmetic number, because the mean of its divisors is an integer number (32084100).

Almost surely, 2^676405632 is an apocalyptic number.

It is an amenable number.

676405632 is an abundant number, since it is smaller than the sum of its proper divisors (1376976768).

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

676405632 is a wasteful number, since it uses less digits than its factorization.

676405632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251663 (or 251651 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The square root of 676405632 is about 26007.7994455509. The cubic root of 676405632 is about 877.8138019410.

The spelling of 676405632 in words is "six hundred seventy-six million, four hundred five thousand, six hundred thirty-two".