725169770 has 64 divisors (see below), whose sum is σ = 1491194880. Its totient is φ = 251693568.

The previous prime is 725169733. The next prime is 725169773. The reversal of 725169770 is 77961527.

It is not an unprimeable number, because it can be changed into a prime (725169773) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 337319 + ... + 339461.

It is an arithmetic number, because the mean of its divisors is an integer number (23299920).

Almost surely, 2^725169770 is an apocalyptic number.

725169770 is an abundant number, since it is smaller than the sum of its proper divisors (766025110).

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

725169770 is a wasteful number, since it uses less digits than its factorization.

725169770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319.

The product of its (nonzero) digits is 185220, while the sum is 44.

The square root of 725169770 is about 26928.9764008957. The cubic root of 725169770 is about 898.4210050325.

The spelling of 725169770 in words is "seven hundred twenty-five million, one hundred sixty-nine thousand, seven hundred seventy".