78057824 has 24 divisors (see below), whose sum is σ = 165498480. Its totient is φ = 36026496.

The previous prime is 78057797. The next prime is 78057841. The reversal of 78057824 is 42875087.

It is a super-2 number, since 2×78057824² = 12186047775229952, which contains 22 as substring.

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, 93404 + ... + 94235.

It is an arithmetic number, because the mean of its divisors is an integer number (6895770).

Almost surely, 2^78057824 is an apocalyptic number.

It is an amenable number.

78057824 is an abundant number, since it is smaller than the sum of its proper divisors (87440656).

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

78057824 is a wasteful number, since it uses less digits than its factorization.

78057824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187662 (or 187654 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 78057824 is about 8835.0338991993. The cubic root of 78057824 is about 427.3714242334.

The spelling of 78057824 in words is "seventy-eight million, fifty-seven thousand, eight hundred twenty-four".