425279620 has 24 divisors (see below), whose sum is σ = 894598488. Its totient is φ = 169824000.

The previous prime is 425279567. The next prime is 425279627. The reversal of 425279620 is 26972524.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 184905604 + 240374016 = 13598^2 + 15504^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 425279620.

It is not an unprimeable number, because it can be changed into a prime (425279627) 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, 5671 + ... + 29710.

It is an arithmetic number, because the mean of its divisors is an integer number (37274937).

Almost surely, 2^425279620 is an apocalyptic number.

It is an amenable number.

425279620 is an abundant number, since it is smaller than the sum of its proper divisors (469318868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425279620 is a wasteful number, since it uses less digits than its factorization.

425279620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35991 (or 35989 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 425279620 is about 20622.3087941191. The cubic root of 425279620 is about 752.0121494378.

The spelling of 425279620 in words is "four hundred twenty-five million, two hundred seventy-nine thousand, six hundred twenty".