42631227 has 6 divisors (see below), whose sum is σ = 61578452. Its totient is φ = 28420812.

The previous prime is 42631181. The next prime is 42631243. The reversal of 42631227 is 72213624.

42631227 is a `hidden beast` number, since 4 + 2 + 631 + 2 + 27 = 666.

It is not a de Polignac number, because 42631227 - 2⁶ = 42631163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42631227.

It is not an unprimeable number, because it can be changed into a prime (42671227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2368393 + ... + 2368410.

Almost surely, 2^42631227 is an apocalyptic number.

42631227 is a deficient number, since it is larger than the sum of its proper divisors (18947225).

42631227 is a wasteful number, since it uses less digits than its factorization.

42631227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4736809 (or 4736806 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 42631227 is about 6529.2592994918. The cubic root of 42631227 is about 349.3354109688.

The spelling of 42631227 in words is "forty-two million, six hundred thirty-one thousand, two hundred twenty-seven".