78076642 has 16 divisors (see below), whose sum is σ = 138461760. Its totient is φ = 32307408.

The previous prime is 78076637. The next prime is 78076657. The reversal of 78076642 is 24667087.

It is a junction number, because it is equal to n+sod(n) for n = 78076595 and 78076604.

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, 95748 + ... + 96559.

It is an arithmetic number, because the mean of its divisors is an integer number (8653860).

Almost surely, 2^78076642 is an apocalyptic number.

78076642 is a deficient number, since it is larger than the sum of its proper divisors (60385118).

78076642 is a wasteful number, since it uses less digits than its factorization.

78076642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192345.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 78076642 is about 8836.0987998098. The cubic root of 78076642 is about 427.4057647128.

The spelling of 78076642 in words is "seventy-eight million, seventy-six thousand, six hundred forty-two".