725622040 has 64 divisors (see below), whose sum is σ = 1918092960. Its totient is φ = 243563520.

The previous prime is 725622019. The next prime is 725622083. The reversal of 725622040 is 40226527.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57709 + ... + 69148.

Almost surely, 2^725622040 is an apocalyptic number.

It is an amenable number.

725622040 is an abundant number, since it is smaller than the sum of its proper divisors (1192470920).

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

725622040 is a wasteful number, since it uses less digits than its factorization.

725622040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126892 (or 126888 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 725622040 is about 26937.3725519027. The cubic root of 725622040 is about 898.6077403515.

Adding to 725622040 its reverse (40226527), we get a palindrome (765848567).

The spelling of 725622040 in words is "seven hundred twenty-five million, six hundred twenty-two thousand, forty".