725154740 has 24 divisors (see below), whose sum is σ = 1532531112. Its totient is φ = 288213120.

The previous prime is 725154721. The next prime is 725154757. The reversal of 725154740 is 47451527.

It can be written as a sum of positive squares in 4 ways, for example, as 13118884 + 712035856 = 3622^2 + 26684^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 725154740.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112331 + ... + 118610.

It is an arithmetic number, because the mean of its divisors is an integer number (63855463).

Almost surely, 2^725154740 is an apocalyptic number.

It is an amenable number.

725154740 is an abundant number, since it is smaller than the sum of its proper divisors (807376372).

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

725154740 is a wasteful number, since it uses less digits than its factorization.

725154740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231107 (or 231105 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 35.

The square root of 725154740 is about 26928.6973320285. The cubic root of 725154740 is about 898.4147980441.

The spelling of 725154740 in words is "seven hundred twenty-five million, one hundred fifty-four thousand, seven hundred forty".