78038012 has 12 divisors (see below), whose sum is σ = 147071736. Its totient is φ = 36017520.

The previous prime is 78038003. The next prime is 78038027. The reversal of 78038012 is 21083087.

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, 750314 + ... + 750417.

It is an arithmetic number, because the mean of its divisors is an integer number (12255978).

Almost surely, 2^78038012 is an apocalyptic number.

It is an amenable number.

78038012 is a deficient number, since it is larger than the sum of its proper divisors (69033724).

78038012 is a wasteful number, since it uses less digits than its factorization.

78038012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500748 (or 1500746 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 78038012 is about 8833.9126099368. The cubic root of 78038012 is about 427.3352638647.

The spelling of 78038012 in words is "seventy-eight million, thirty-eight thousand, twelve".