42905604 has 48 divisors (see below), whose sum is σ = 115998848. Its totient is φ = 12089088.

The previous prime is 42905579. The next prime is 42905623. The reversal of 42905604 is 40650924.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2634 + ... + 9630.

Almost surely, 2^42905604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42905604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57999424).

42905604 is an abundant number, since it is smaller than the sum of its proper divisors (73093244).

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

42905604 is a wasteful number, since it uses less digits than its factorization.

42905604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7084 (or 7082 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 42905604 is about 6550.2369422793. The cubic root of 42905604 is about 350.0832563843.

The spelling of 42905604 in words is "forty-two million, nine hundred five thousand, six hundred four".