78022672 has 80 divisors (see below), whose sum is σ = 190737792. Its totient is φ = 30090240.

The previous prime is 78022657. The next prime is 78022717. The reversal of 78022672 is 27622087.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59043 + ... + 60349.

Almost surely, 2^78022672 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 78022672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95368896).

78022672 is an abundant number, since it is smaller than the sum of its proper divisors (112715120).

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

78022672 is a wasteful number, since it uses less digits than its factorization.

78022672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376 (or 1370 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 78022672 is about 8833.0443223161. The cubic root of 78022672 is about 427.3072614747.

The spelling of 78022672 in words is "seventy-eight million, twenty-two thousand, six hundred seventy-two".