78020244 has 36 divisors (see below), whose sum is σ = 197486016. Its totient is φ = 25971408.

The previous prime is 78020233. The next prime is 78020263. The reversal of 78020244 is 44202087.

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

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, 50467 + ... + 51989.

Almost surely, 2^78020244 is an apocalyptic number.

It is an amenable number.

78020244 is an abundant number, since it is smaller than the sum of its proper divisors (119465772).

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

78020244 is a wasteful number, since it uses less digits than its factorization.

78020244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956 (or 2951 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 78020244 is about 8832.9068827878. The cubic root of 78020244 is about 427.3028289478.

The spelling of 78020244 in words is "seventy-eight million, twenty thousand, two hundred forty-four".