75444426 has 16 divisors (see below), whose sum is σ = 167654400. Its totient is φ = 25148124.

The previous prime is 75444379. The next prime is 75444431. The reversal of 75444426 is 62444457.

It is a super-2 number, since 2×75444426² = 11383722828938952, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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, 698506 + ... + 698613.

It is an arithmetic number, because the mean of its divisors is an integer number (10478400).

Almost surely, 2^75444426 is an apocalyptic number.

75444426 is an abundant number, since it is smaller than the sum of its proper divisors (92209974).

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

75444426 is a wasteful number, since it uses less digits than its factorization.

75444426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397130 (or 1397124 counting only the distinct ones).

The product of its digits is 107520, while the sum is 36.

The square root of 75444426 is about 8685.8750854476. The cubic root of 75444426 is about 422.5476780572.

The spelling of 75444426 in words is "seventy-five million, four hundred forty-four thousand, four hundred twenty-six".