422406747 has 12 divisors (see below), whose sum is σ = 697306480. Its totient is φ = 241375248.

The previous prime is 422406739. The next prime is 422406781. The reversal of 422406747 is 747604224.

It is a happy number.

It is not a de Polignac number, because 422406747 - 2³ = 422406739 is a prime.

It is a super-2 number, since 2×422406747² = 356854919822244018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422406737) 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, 3352372 + ... + 3352497.

Almost surely, 2^422406747 is an apocalyptic number.

422406747 is a deficient number, since it is larger than the sum of its proper divisors (274899733).

422406747 is a wasteful number, since it uses less digits than its factorization.

422406747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6704882 (or 6704879 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The square root of 422406747 is about 20552.5362668455. The cubic root of 422406747 is about 750.3149770341.

The spelling of 422406747 in words is "four hundred twenty-two million, four hundred six thousand, seven hundred forty-seven".