42634090 has 16 divisors (see below), whose sum is σ = 76824288. Its totient is φ = 17035216.

The previous prime is 42634087. The next prime is 42634091. The reversal of 42634090 is 9043624.

It is not an unprimeable number, because it can be changed into a prime (42634091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11169 + ... + 14491.

It is an arithmetic number, because the mean of its divisors is an integer number (4801518).

Almost surely, 2^42634090 is an apocalyptic number.

42634090 is a deficient number, since it is larger than the sum of its proper divisors (34190198).

42634090 is a wasteful number, since it uses less digits than its factorization.

42634090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4613.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 42634090 is about 6529.4785396692. The cubic root of 42634090 is about 349.3432309399.

The spelling of 42634090 in words is "forty-two million, six hundred thirty-four thousand, ninety".