78330044 has 48 divisors (see below), whose sum is σ = 154291200. Its totient is φ = 34546176.

The previous prime is 78330041. The next prime is 78330053. The reversal of 78330044 is 44003387.

It is a super-2 number, since 2×78330044² = 12271191586083872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 78329989 and 78330016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78330041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191312 + ... + 191720.

It is an arithmetic number, because the mean of its divisors is an integer number (3214400).

Almost surely, 2^78330044 is an apocalyptic number.

It is an amenable number.

78330044 is a deficient number, since it is larger than the sum of its proper divisors (75961156).

78330044 is a wasteful number, since it uses less digits than its factorization.

78330044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 78330044 is about 8850.4262044265. The cubic root of 78330044 is about 427.8676549495.

The spelling of 78330044 in words is "seventy-eight million, three hundred thirty thousand, forty-four".