422737731 has 32 divisors (see below), whose sum is σ = 696227840. Its totient is φ = 251748000.

The previous prime is 422737717. The next prime is 422737739. The reversal of 422737731 is 137737224.

It is a happy number.

It is not a de Polignac number, because 422737731 - 2⁷ = 422737603 is a prime.

It is a super-2 number, since 2×422737731² = 357414378422056722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422737739) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8545 + ... + 30306.

It is an arithmetic number, because the mean of its divisors is an integer number (21757120).

Almost surely, 2^422737731 is an apocalyptic number.

422737731 is a deficient number, since it is larger than the sum of its proper divisors (273490109).

422737731 is a wasteful number, since it uses less digits than its factorization.

422737731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38904 (or 38898 counting only the distinct ones).

The product of its digits is 49392, while the sum is 36.

The square root of 422737731 is about 20560.5868350103. The cubic root of 422737731 is about 750.5108998960.

The spelling of 422737731 in words is "four hundred twenty-two million, seven hundred thirty-seven thousand, seven hundred thirty-one".