74287392 has 48 divisors (see below), whose sum is σ = 195828192. Its totient is φ = 24657920.

The previous prime is 74287391. The next prime is 74287393. The reversal of 74287392 is 29378247.

It is an interprime number because it is at equal distance from previous prime (74287391) and next prime (74287393).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×74287392² = 11037233220323328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74287391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23167 + ... + 26177.

It is an arithmetic number, because the mean of its divisors is an integer number (4079754).

Almost surely, 2^74287392 is an apocalyptic number.

It is an amenable number.

74287392 is an abundant number, since it is smaller than the sum of its proper divisors (121540800).

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

74287392 is a wasteful number, since it uses less digits than its factorization.

74287392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3281 (or 3273 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 74287392 is about 8619.0134006161. The cubic root of 74287392 is about 420.3764425422.

The spelling of 74287392 in words is "seventy-four million, two hundred eighty-seven thousand, three hundred ninety-two".