76438770 has 16 divisors (see below), whose sum is σ = 183453120. Its totient is φ = 20383664.

The previous prime is 76438727. The next prime is 76438793. The reversal of 76438770 is 7783467.

It is a super-2 number, since 2×76438770² = 11685771118225800, 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, 1273950 + ... + 1274009.

It is an arithmetic number, because the mean of its divisors is an integer number (11465820).

Almost surely, 2^76438770 is an apocalyptic number.

76438770 is an abundant number, since it is smaller than the sum of its proper divisors (107014350).

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

76438770 is a wasteful number, since it uses less digits than its factorization.

76438770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547969.

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 76438770 is about 8742.9268554644. The cubic root of 76438770 is about 424.3959492537.

The spelling of 76438770 in words is "seventy-six million, four hundred thirty-eight thousand, seven hundred seventy".