42539070 has 32 divisors (see below), whose sum is σ = 116679168. Its totient is φ = 9723168.

The previous prime is 42539047. The next prime is 42539087. The reversal of 42539070 is 7093524.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101074 + ... + 101493.

It is an arithmetic number, because the mean of its divisors is an integer number (3646224).

Almost surely, 2^42539070 is an apocalyptic number.

42539070 is an abundant number, since it is smaller than the sum of its proper divisors (74140098).

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

42539070 is a wasteful number, since it uses less digits than its factorization.

42539070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202584.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 42539070 is about 6522.1982490568. The cubic root of 42539070 is about 349.0835069724.

The spelling of 42539070 in words is "forty-two million, five hundred thirty-nine thousand, seventy".