42057210 has 32 divisors (see below), whose sum is σ = 108702720. Its totient is φ = 10352448.

The previous prime is 42057181. The next prime is 42057233. The reversal of 42057210 is 1275024.

It is a Curzon 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, 53530 + ... + 54309.

It is an arithmetic number, because the mean of its divisors is an integer number (3396960).

Almost surely, 2^42057210 is an apocalyptic number.

42057210 is an abundant number, since it is smaller than the sum of its proper divisors (66645510).

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

42057210 is a wasteful number, since it uses less digits than its factorization.

42057210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107862.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 42057210 is about 6485.1530436837. The cubic root of 42057210 is about 347.7604210435.

It can be divided in two parts, 420 and 57210, that added together give a triangular number (57630 = T₃₃₉).

The spelling of 42057210 in words is "forty-two million, fifty-seven thousand, two hundred ten".