78000372 has 36 divisors (see below), whose sum is σ = 203969220. Its totient is φ = 25103232.

The previous prime is 78000361. The next prime is 78000407. The reversal of 78000372 is 27300087.

78000372 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 61402896 + 16597476 = 7836^2 + 4074^2 .

It is a tau number, because it is divible by the number of its divisors (36).

78000372 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36313 + ... + 38400.

Almost surely, 2^78000372 is an apocalyptic number.

It is an amenable number.

78000372 is an abundant number, since it is smaller than the sum of its proper divisors (125968848).

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

78000372 is a wasteful number, since it uses less digits than its factorization.

78000372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74752 (or 74747 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 78000372 is about 8831.7819266556. The cubic root of 78000372 is about 427.2665474119.

The spelling of 78000372 in words is "seventy-eight million, three hundred seventy-two", and thus it is an aban number.