42507604 has 12 divisors (see below), whose sum is σ = 74576628. Its totient is φ = 21200000.

The previous prime is 42507601. The next prime is 42507613. The reversal of 42507604 is 40670524.

It can be written as a sum of positive squares in 2 ways, for example, as 31945104 + 10562500 = 5652^2 + 3250^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42507601) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11647 + ... + 14854.

It is an arithmetic number, because the mean of its divisors is an integer number (6214719).

Almost surely, 2^42507604 is an apocalyptic number.

It is an amenable number.

42507604 is a deficient number, since it is larger than the sum of its proper divisors (32069024).

42507604 is a wasteful number, since it uses less digits than its factorization.

42507604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26906 (or 26904 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 42507604 is about 6519.7855792963. The cubic root of 42507604 is about 348.9974137952.

The spelling of 42507604 in words is "forty-two million, five hundred seven thousand, six hundred four".