42588938 has 28 divisors (see below), whose sum is σ = 74942322. Its totient is φ = 18151560.

The previous prime is 42588929. The next prime is 42588943. The reversal of 42588938 is 83988524.

It can be written as a sum of positive squares in only one way, i.e., 42471289 + 117649 = 6517^2 + 343^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42588892 and 42588901.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 235208 + ... + 235388.

Almost surely, 2^42588938 is an apocalyptic number.

42588938 is a deficient number, since it is larger than the sum of its proper divisors (32353384).

42588938 is an frugal number, since it uses more digits than its factorization.

42588938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 190 counting only the distinct ones).

The product of its digits is 552960, while the sum is 47.

The square root of 42588938 is about 6526.0200735211. The cubic root of 42588938 is about 349.2198623929.

The spelling of 42588938 in words is "forty-two million, five hundred eighty-eight thousand, nine hundred thirty-eight".