42013508 has 6 divisors (see below), whose sum is σ = 73523646. Its totient is φ = 21006752.

The previous prime is 42013501. The next prime is 42013523. The reversal of 42013508 is 80531024.

It can be written as a sum of positive squares in only one way, i.e., 37356544 + 4656964 = 6112^2 + 2158^2 .

It is not an unprimeable number, because it can be changed into a prime (42013501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5251685 + ... + 5251692.

It is an arithmetic number, because the mean of its divisors is an integer number (12253941).

Almost surely, 2^42013508 is an apocalyptic number.

It is an amenable number.

42013508 is a deficient number, since it is larger than the sum of its proper divisors (31510138).

42013508 is a wasteful number, since it uses less digits than its factorization.

42013508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10503381 (or 10503379 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 42013508 is about 6481.7827794520. The cubic root of 42013508 is about 347.6399257069.

The spelling of 42013508 in words is "forty-two million, thirteen thousand, five hundred eight".