42531842 has 16 divisors (see below), whose sum is σ = 68796000. Its totient is φ = 19654560.

The previous prime is 42531809. The next prime is 42531887. The reversal of 42531842 is 24813524.

It is a happy 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, 12092 + ... + 15207.

It is an arithmetic number, because the mean of its divisors is an integer number (4299750).

Almost surely, 2^42531842 is an apocalyptic number.

42531842 is a deficient number, since it is larger than the sum of its proper divisors (26264158).

42531842 is a wasteful number, since it uses less digits than its factorization.

42531842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27361.

The product of its digits is 7680, while the sum is 29.

The square root of 42531842 is about 6521.6441178586. The cubic root of 42531842 is about 349.0637344158.

The spelling of 42531842 in words is "forty-two million, five hundred thirty-one thousand, eight hundred forty-two".