42940542 has 32 divisors (see below), whose sum is σ = 87847200. Its totient is φ = 13989888.

The previous prime is 42940537. The next prime is 42940567. The reversal of 42940542 is 24504924.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51384 + ... + 52212.

It is an arithmetic number, because the mean of its divisors is an integer number (2745225).

Almost surely, 2^42940542 is an apocalyptic number.

42940542 is an abundant number, since it is smaller than the sum of its proper divisors (44906658).

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

42940542 is a wasteful number, since it uses less digits than its factorization.

42940542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 42940542 is about 6552.9033260075. The cubic root of 42940542 is about 350.1782547778.

The spelling of 42940542 in words is "forty-two million, nine hundred forty thousand, five hundred forty-two".