42422904 has 24 divisors (see below), whose sum is σ = 114895560. Its totient is φ = 14140944.

The previous prime is 42422903. The next prime is 42422917. The reversal of 42422904 is 40922424.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42422903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 294532 + ... + 294675.

It is an arithmetic number, because the mean of its divisors is an integer number (4787315).

Almost surely, 2^42422904 is an apocalyptic number.

It is an amenable number.

42422904 is an abundant number, since it is smaller than the sum of its proper divisors (72472656).

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

42422904 is a wasteful number, since it uses less digits than its factorization.

42422904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589219 (or 589212 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 42422904 is about 6513.2867279124. The cubic root of 42422904 is about 348.7654573640.

The spelling of 42422904 in words is "forty-two million, four hundred twenty-two thousand, nine hundred four".