422448477 has 16 divisors (see below), whose sum is σ = 615403008. Its totient is φ = 255640880.

The previous prime is 422448473. The next prime is 422448479. The reversal of 422448477 is 774844224.

It is not a de Polignac number, because 422448477 - 2² = 422448473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422448473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13168 + ... + 31910.

It is an arithmetic number, because the mean of its divisors is an integer number (38462688).

Almost surely, 2^422448477 is an apocalyptic number.

It is an amenable number.

422448477 is a deficient number, since it is larger than the sum of its proper divisors (192954531).

422448477 is a wasteful number, since it uses less digits than its factorization.

422448477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19440.

The product of its digits is 401408, while the sum is 42.

The square root of 422448477 is about 20553.5514449450. The cubic root of 422448477 is about 750.3396843517.

It can be divided in two parts, 42244 and 8477, that added together give a triangular number (50721 = T₃₁₈).

The spelling of 422448477 in words is "four hundred twenty-two million, four hundred forty-eight thousand, four hundred seventy-seven".