74442951 has 36 divisors (see below), whose sum is σ = 119135016. Its totient is φ = 44758560.

The previous prime is 74442937. The next prime is 74442989. The reversal of 74442951 is 15924447.

It is a happy number.

It is not a de Polignac number, because 74442951 - 2²¹ = 72345799 is a prime.

It is a super-3 number, since 3×74442951³ (a number of 25 digits) contains 333 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74442911) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 214360 + ... + 214706.

It is an arithmetic number, because the mean of its divisors is an integer number (3309306).

Almost surely, 2^74442951 is an apocalyptic number.

74442951 is a deficient number, since it is larger than the sum of its proper divisors (44692065).

74442951 is a wasteful number, since it uses less digits than its factorization.

74442951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 558 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 74442951 is about 8628.0328580737. The cubic root of 74442951 is about 420.6696629905.

The spelling of 74442951 in words is "seventy-four million, four hundred forty-two thousand, nine hundred fifty-one".