74930142 has 32 divisors (see below), whose sum is σ = 177177600. Its totient is φ = 20670048.

The previous prime is 74930117. The next prime is 74930147. The reversal of 74930142 is 24103947.

It is a happy number.

It is a super-2 number, since 2×74930142² = 11229052360280328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74930147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29542 + ... + 31977.

It is an arithmetic number, because the mean of its divisors is an integer number (5536800).

Almost surely, 2^74930142 is an apocalyptic number.

74930142 is an abundant number, since it is smaller than the sum of its proper divisors (102247458).

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

74930142 is a wasteful number, since it uses less digits than its factorization.

74930142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61560.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 74930142 is about 8656.2198447128. The cubic root of 74930142 is about 421.5853574903.

The spelling of 74930142 in words is "seventy-four million, nine hundred thirty thousand, one hundred forty-two".