42057042 has 8 divisors (see below), whose sum is σ = 84114096. Its totient is φ = 14019012.

The previous prime is 42057019. The next prime is 42057073. The reversal of 42057042 is 24075024.

It is a sphenic number, since it is the product of 3 distinct primes.

42057042 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3504748 + ... + 3504759.

It is an arithmetic number, because the mean of its divisors is an integer number (10514262).

Almost surely, 2^42057042 is an apocalyptic number.

42057042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42057042 is a wasteful number, since it uses less digits than its factorization.

42057042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009512.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 42057042 is about 6485.1400910081. The cubic root of 42057042 is about 347.7599579931.

The spelling of 42057042 in words is "forty-two million, fifty-seven thousand, forty-two".