42227907 has 4 divisors (see below), whose sum is σ = 56303880. Its totient is φ = 28151936.

The previous prime is 42227903. The next prime is 42227929. The reversal of 42227907 is 70972224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42227907 - 2² = 42227903 is a prime.

It is a super-2 number, since 2×42227907² = 3566392259201298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42227903) 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, 7037982 + ... + 7037987.

It is an arithmetic number, because the mean of its divisors is an integer number (14075970).

Almost surely, 2^42227907 is an apocalyptic number.

42227907 is a deficient number, since it is larger than the sum of its proper divisors (14075973).

42227907 is a wasteful number, since it uses less digits than its factorization.

42227907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14075972.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 42227907 is about 6498.3003162365. The cubic root of 42227907 is about 348.2302693848.

It can be divided in two parts, 42227 and 907, that added together give a palindrome (43134).

The spelling of 42227907 in words is "forty-two million, two hundred twenty-seven thousand, nine hundred seven".