42942474 has 28 divisors (see below), whose sum is σ = 96579666. Its totient is φ = 14313672.

The previous prime is 42942463. The next prime is 42942481. The reversal of 42942474 is 47424924.

It can be written as a sum of positive squares in only one way, i.e., 36905625 + 6036849 = 6075^2 + 2457^2 .

It is a nialpdrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 13269 + ... + 16184.

Almost surely, 2^42942474 is an apocalyptic number.

42942474 is an abundant number, since it is smaller than the sum of its proper divisors (53637192).

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

42942474 is an equidigital number, since it uses as much as digits as its factorization.

42942474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29473 (or 29458 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 42942474 is about 6553.0507399226. The cubic root of 42942474 is about 350.1835064910.

The spelling of 42942474 in words is "forty-two million, nine hundred forty-two thousand, four hundred seventy-four".