42471904 has 24 divisors (see below), whose sum is σ = 83878200. Its totient is φ = 21169536.

The previous prime is 42471889. The next prime is 42471907. The reversal of 42471904 is 40917424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42471907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9267 + ... + 13069.

It is an arithmetic number, because the mean of its divisors is an integer number (3494925).

Almost surely, 2^42471904 is an apocalyptic number.

It is an amenable number.

42471904 is a deficient number, since it is larger than the sum of its proper divisors (41406296).

42471904 is a wasteful number, since it uses less digits than its factorization.

42471904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4162 (or 4154 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 42471904 is about 6517.0471841164. The cubic root of 42471904 is about 348.8996846355.

The spelling of 42471904 in words is "forty-two million, four hundred seventy-one thousand, nine hundred four".