74902142 has 32 divisors (see below), whose sum is σ = 135955200. Its totient is φ = 30233088.

The previous prime is 74902141. The next prime is 74902193. The reversal of 74902142 is 24120947.

It is a super-2 number, since 2×74902142² = 11220661752376328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74902141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50609 + ... + 52067.

It is an arithmetic number, because the mean of its divisors is an integer number (4248600).

Almost surely, 2^74902142 is an apocalyptic number.

74902142 is a deficient number, since it is larger than the sum of its proper divisors (61053058).

74902142 is a wasteful number, since it uses less digits than its factorization.

74902142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 74902142 is about 8654.6023594386. The cubic root of 74902142 is about 421.5328380798.

The spelling of 74902142 in words is "seventy-four million, nine hundred two thousand, one hundred forty-two".