725401770 has 16 divisors (see below), whose sum is σ = 1740964320. Its totient is φ = 193440464.

The previous prime is 725401769. The next prime is 725401771. The reversal of 725401770 is 77104527.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (725401769) and next prime (725401771).

It is not an unprimeable number, because it can be changed into a prime (725401771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12090000 + ... + 12090059.

It is an arithmetic number, because the mean of its divisors is an integer number (108810270).

Almost surely, 2^725401770 is an apocalyptic number.

725401770 is an abundant number, since it is smaller than the sum of its proper divisors (1015562550).

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

725401770 is a wasteful number, since it uses less digits than its factorization.

725401770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24180069.

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 725401770 is about 26933.2836839476. The cubic root of 725401770 is about 898.5168039558.

The spelling of 725401770 in words is "seven hundred twenty-five million, four hundred one thousand, seven hundred seventy".