74312142 has 16 divisors (see below), whose sum is σ = 150014592. Its totient is φ = 24539000.

The previous prime is 74312129. The next prime is 74312159. The reversal of 74312142 is 24121347.

It is a happy number.

It is a congruent number.

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, 57234 + ... + 58517.

It is an arithmetic number, because the mean of its divisors is an integer number (9375912).

Almost surely, 2^74312142 is an apocalyptic number.

74312142 is an abundant number, since it is smaller than the sum of its proper divisors (75702450).

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

74312142 is a wasteful number, since it uses less digits than its factorization.

74312142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115863.

The product of its digits is 1344, while the sum is 24.

The square root of 74312142 is about 8620.4490602288. The cubic root of 74312142 is about 420.4231223418.

Adding to 74312142 its reverse (24121347), we get a palindrome (98433489).

The spelling of 74312142 in words is "seventy-four million, three hundred twelve thousand, one hundred forty-two".