43270638 has 32 divisors (see below), whose sum is σ = 91929600. Its totient is φ = 13539456.

The previous prime is 43270607. The next prime is 43270651. The reversal of 43270638 is 83607234.

It is a super-2 number, since 2×43270638² = 3744696225854088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43270599 and 43270608.

It is a congruent number.

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, 11203 + ... + 14561.

It is an arithmetic number, because the mean of its divisors is an integer number (2872800).

Almost surely, 2^43270638 is an apocalyptic number.

43270638 is an abundant number, since it is smaller than the sum of its proper divisors (48658962).

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

43270638 is a wasteful number, since it uses less digits than its factorization.

43270638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3496.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 43270638 is about 6578.0421099291. The cubic root of 43270638 is about 351.0732714463.

The spelling of 43270638 in words is "forty-three million, two hundred seventy thousand, six hundred thirty-eight".