422999931 has 8 divisors (see below), whose sum is σ = 564102160. Its totient is φ = 281948832.

The previous prime is 422999903. The next prime is 422999963. The reversal of 422999931 is 139999224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 422999931 - 2¹⁵ = 422967163 is a prime.

It is a super-2 number, since 2×422999931² = 357857883252009522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422999971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15405 + ... + 32913.

It is an arithmetic number, because the mean of its divisors is an integer number (70512770).

Almost surely, 2^422999931 is an apocalyptic number.

422999931 is a deficient number, since it is larger than the sum of its proper divisors (141102229).

422999931 is a wasteful number, since it uses less digits than its factorization.

422999931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25565.

The product of its digits is 314928, while the sum is 48.

The square root of 422999931 is about 20566.9621237557. The cubic root of 422999931 is about 750.6660341341. Note that the first 3 decimals are identical.

The spelling of 422999931 in words is "four hundred twenty-two million, nine hundred ninety-nine thousand, nine hundred thirty-one".