76664442 has 32 divisors (see below), whose sum is σ = 157943808. Its totient is φ = 24793776.

The previous prime is 76664437. The next prime is 76664453. The reversal of 76664442 is 24446667.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 76664442.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41143 + ... + 42965.

It is an arithmetic number, because the mean of its divisors is an integer number (4935744).

Almost surely, 2^76664442 is an apocalyptic number.

76664442 is an abundant number, since it is smaller than the sum of its proper divisors (81279366).

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

76664442 is a wasteful number, since it uses less digits than its factorization.

76664442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034.

The product of its digits is 193536, while the sum is 39.

The square root of 76664442 is about 8755.8233193687. The cubic root of 76664442 is about 424.8131903331.

The spelling of 76664442 in words is "seventy-six million, six hundred sixty-four thousand, four hundred forty-two".