425623760 has 20 divisors (see below), whose sum is σ = 989575428. Its totient is φ = 170249472.

The previous prime is 425623753. The next prime is 425623789. The reversal of 425623760 is 67326524.

It can be written as a sum of positive squares in 2 ways, for example, as 323856016 + 101767744 = 17996^2 + 10088^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 425623760.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2660069 + ... + 2660228.

Almost surely, 2^425623760 is an apocalyptic number.

425623760 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425623760 is an abundant number, since it is smaller than the sum of its proper divisors (563951668).

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

425623760 is a wasteful number, since it uses less digits than its factorization.

425623760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5320310 (or 5320304 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 425623760 is about 20630.6509834275. The cubic root of 425623760 is about 752.2149396909.

The spelling of 425623760 in words is "four hundred twenty-five million, six hundred twenty-three thousand, seven hundred sixty".