422247477 has 12 divisors (see below), whose sum is σ = 569889344. Its totient is φ = 278093160.

The previous prime is 422247457. The next prime is 422247521. The reversal of 422247477 is 774742224.

It is not a de Polignac number, because 422247477 - 2²³ = 413858869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422247407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10452 + ... + 30882.

Almost surely, 2^422247477 is an apocalyptic number.

It is an amenable number.

422247477 is a deficient number, since it is larger than the sum of its proper divisors (147641867).

422247477 is an equidigital number, since it uses as much as digits as its factorization.

422247477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20600 (or 20517 counting only the distinct ones).

The product of its digits is 175616, while the sum is 39.

The square root of 422247477 is about 20548.6611972654. The cubic root of 422247477 is about 750.2206621823.

The spelling of 422247477 in words is "four hundred twenty-two million, two hundred forty-seven thousand, four hundred seventy-seven".