422623731 has 8 divisors (see below), whose sum is σ = 578728144. Its totient is φ = 274134240.

The previous prime is 422623717. The next prime is 422623741. The reversal of 422623731 is 137326224.

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

It is not a de Polignac number, because 422623731 - 2¹⁴ = 422607347 is a prime.

It is a super-2 number, since 2×422623731² = 357221636008720722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422623741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1903600 + ... + 1903821.

It is an arithmetic number, because the mean of its divisors is an integer number (72341018).

Almost surely, 2^422623731 is an apocalyptic number.

422623731 is a deficient number, since it is larger than the sum of its proper divisors (156104413).

422623731 is a wasteful number, since it uses less digits than its factorization.

422623731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3807461.

The product of its digits is 12096, while the sum is 30.

The square root of 422623731 is about 20557.8143536710. The cubic root of 422623731 is about 750.4434302190.

Adding to 422623731 its reverse (137326224), we get a palindrome (559949955).

The spelling of 422623731 in words is "four hundred twenty-two million, six hundred twenty-three thousand, seven hundred thirty-one".