725422468 has 12 divisors (see below), whose sum is σ = 1281136780. Its totient is φ = 359383392.

The previous prime is 725422463. The next prime is 725422499. The reversal of 725422468 is 864224527.

It can be written as a sum of positive squares in 2 ways, for example, as 561121344 + 164301124 = 23688^2 + 12818^2 .

It is a super-2 number, since 2×725422468² = 1052475514158422048, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) 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 725422468.

It is not an unprimeable number, because it can be changed into a prime (725422463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831471 + ... + 832342.

Almost surely, 2^725422468 is an apocalyptic number.

It is an amenable number.

725422468 is a deficient number, since it is larger than the sum of its proper divisors (555714312).

725422468 is a wasteful number, since it uses less digits than its factorization.

725422468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663926 (or 1663924 counting only the distinct ones).

The product of its digits is 215040, while the sum is 40.

The square root of 725422468 is about 26933.6679269646. The cubic root of 725422468 is about 898.5253497137.

The spelling of 725422468 in words is "seven hundred twenty-five million, four hundred twenty-two thousand, four hundred sixty-eight".