725733900 has 54 divisors (see below), whose sum is σ = 2274775412. Its totient is φ = 193528800.

The previous prime is 725733887. The next prime is 725733917. The reversal of 725733900 is 9337527.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 402286 + ... + 404085.

Almost surely, 2^725733900 is an apocalyptic number.

It is an amenable number.

725733900 is an abundant number, since it is smaller than the sum of its proper divisors (1549041512).

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

725733900 is a wasteful number, since it uses less digits than its factorization.

725733900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806391 (or 806381 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The square root of 725733900 is about 26939.4487694162. The cubic root of 725733900 is about 898.6539136536.

The spelling of 725733900 in words is "seven hundred twenty-five million, seven hundred thirty-three thousand, nine hundred".