42072604 has 24 divisors (see below), whose sum is σ = 84510720. Its totient is φ = 17952816.

The previous prime is 42072599. The next prime is 42072607. The reversal of 42072604 is 40627024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42072607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3549 + ... + 9835.

It is an arithmetic number, because the mean of its divisors is an integer number (3521280).

Almost surely, 2^42072604 is an apocalyptic number.

It is an amenable number.

42072604 is an abundant number, since it is smaller than the sum of its proper divisors (42438116).

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

42072604 is a wasteful number, since it uses less digits than its factorization.

42072604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6537 (or 6535 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 42072604 is about 6486.3397999180. The cubic root of 42072604 is about 347.8028455639.

Adding to 42072604 its reverse (40627024), we get a palindrome (82699628).

The spelling of 42072604 in words is "forty-two million, seventy-two thousand, six hundred four".