78049256 has 16 divisors (see below), whose sum is σ = 148742340. Its totient is φ = 38384640.

The previous prime is 78049219. The next prime is 78049277. The reversal of 78049256 is 65294087.

It can be written as a sum of positive squares in 2 ways, for example, as 76912900 + 1136356 = 8770^2 + 1066^2 .

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, 79481 + ... + 80456.

Almost surely, 2^78049256 is an apocalyptic number.

It is an amenable number.

78049256 is a deficient number, since it is larger than the sum of its proper divisors (70693084).

78049256 is a wasteful number, since it uses less digits than its factorization.

78049256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160004 (or 160000 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 78049256 is about 8834.5489981096. The cubic root of 78049256 is about 427.3557868843.

The spelling of 78049256 in words is "seventy-eight million, forty-nine thousand, two hundred fifty-six".