422642456 has 8 divisors (see below), whose sum is σ = 792454620. Its totient is φ = 211321224.

The previous prime is 422642419. The next prime is 422642459. The reversal of 422642456 is 654246224.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×422642456² = 357253291227423872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422642459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26415146 + ... + 26415161.

Almost surely, 2^422642456 is an apocalyptic number.

It is an amenable number.

422642456 is a deficient number, since it is larger than the sum of its proper divisors (369812164).

422642456 is a wasteful number, since it uses less digits than its factorization.

422642456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52830313 (or 52830309 counting only the distinct ones).

The product of its digits is 92160, while the sum is 35.

The square root of 422642456 is about 20558.2697715542. The cubic root of 422642456 is about 750.4545132421.

The spelling of 422642456 in words is "four hundred twenty-two million, six hundred forty-two thousand, four hundred fifty-six".