425643604 has 12 divisors (see below), whose sum is σ = 757087828. Its totient is φ = 209332800.

The previous prime is 425643601. The next prime is 425643607. The reversal of 425643604 is 406346524.

It is an interprime number because it is at equal distance from previous prime (425643601) and next prime (425643607).

It can be written as a sum of positive squares in 2 ways, for example, as 35976004 + 389667600 = 5998^2 + 19740^2 .

It is a super-2 number, since 2×425643604² = 362344955252217632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) 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 425643604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425643601) 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, 871977 + ... + 872464.

Almost surely, 2^425643604 is an apocalyptic number.

It is an amenable number.

425643604 is a deficient number, since it is larger than the sum of its proper divisors (331444224).

425643604 is a wasteful number, since it uses less digits than its factorization.

425643604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744506 (or 1744504 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 425643604 is about 20631.1319127187. The cubic root of 425643604 is about 752.2266297661.

The spelling of 425643604 in words is "four hundred twenty-five million, six hundred forty-three thousand, six hundred four".