425579720 has 16 divisors (see below), whose sum is σ = 957554460. Its totient is φ = 170231872.

The previous prime is 425579719. The next prime is 425579723. The reversal of 425579720 is 27975524.

It can be written as a sum of positive squares in 2 ways, for example, as 382046116 + 43533604 = 19546^2 + 6598^2 .

It is a super-2 number, since 2×425579720² = 362236196150556800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (425579723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5319707 + ... + 5319786.

Almost surely, 2^425579720 is an apocalyptic number.

425579720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425579720 is an abundant number, since it is smaller than the sum of its proper divisors (531974740).

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

425579720 is a wasteful number, since it uses less digits than its factorization.

425579720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10639504 (or 10639500 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 425579720 is about 20629.5836118910. The cubic root of 425579720 is about 752.1889944848.

The spelling of 425579720 in words is "four hundred twenty-five million, five hundred seventy-nine thousand, seven hundred twenty".