78444322 has 16 divisors (see below), whose sum is σ = 132505344. Its totient is φ = 34506000.

The previous prime is 78444319. The next prime is 78444347. The reversal of 78444322 is 22344487.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56829 + ... + 58192.

It is an arithmetic number, because the mean of its divisors is an integer number (8281584).

Almost surely, 2^78444322 is an apocalyptic number.

78444322 is a deficient number, since it is larger than the sum of its proper divisors (54061022).

78444322 is a wasteful number, since it uses less digits than its factorization.

78444322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115065.

The product of its digits is 43008, while the sum is 34.

The square root of 78444322 is about 8856.8799246687. The cubic root of 78444322 is about 428.0756300681.

The spelling of 78444322 in words is "seventy-eight million, four hundred forty-four thousand, three hundred twenty-two".