78032988 has 72 divisors (see below), whose sum is σ = 216508656. Its totient is φ = 23500800.

The previous prime is 78032959. The next prime is 78032989. The reversal of 78032988 is 88923087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78032989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75918 + ... + 76938.

Almost surely, 2^78032988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78032988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108254328).

78032988 is an abundant number, since it is smaller than the sum of its proper divisors (138475668).

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

78032988 is a wasteful number, since it uses less digits than its factorization.

78032988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 78032988 is about 8833.6282466493. The cubic root of 78032988 is about 427.3260932123.

The spelling of 78032988 in words is "seventy-eight million, thirty-two thousand, nine hundred eighty-eight".