422409631 has 8 divisors (see below), whose sum is σ = 486440064. Its totient is φ = 359300760.

The previous prime is 422409623. The next prime is 422409719. The reversal of 422409631 is 136904224.

It is a happy number.

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

It is not a de Polignac number, because 422409631 - 2³ = 422409623 is a prime.

It is a super-2 number, since 2×422409631² = 356859792723112322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422409593 and 422409602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422407631) 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, 229405 + ... + 231238.

It is an arithmetic number, because the mean of its divisors is an integer number (60805008).

Almost surely, 2^422409631 is an apocalyptic number.

422409631 is a deficient number, since it is larger than the sum of its proper divisors (64030433).

422409631 is a wasteful number, since it uses less digits than its factorization.

422409631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460781.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 422409631 is about 20552.6064283828. The cubic root of 422409631 is about 750.3166846327.

The spelling of 422409631 in words is "four hundred twenty-two million, four hundred nine thousand, six hundred thirty-one".