42634388 has 12 divisors (see below), whose sum is σ = 74716320. Its totient is φ = 21286872.

The previous prime is 42634381. The next prime is 42634391. The reversal of 42634388 is 88343624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42634381) 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, 4256 + ... + 10167.

It is an arithmetic number, because the mean of its divisors is an integer number (6226360).

Almost surely, 2^42634388 is an apocalyptic number.

It is an amenable number.

42634388 is a deficient number, since it is larger than the sum of its proper divisors (32081932).

42634388 is a wasteful number, since it uses less digits than its factorization.

42634388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15166 (or 15164 counting only the distinct ones).

The product of its digits is 110592, while the sum is 38.

The square root of 42634388 is about 6529.5013592157. The cubic root of 42634388 is about 349.3440448742.

The spelling of 42634388 in words is "forty-two million, six hundred thirty-four thousand, three hundred eighty-eight".