725499140 has 24 divisors (see below), whose sum is σ = 1613169432. Its totient is φ = 273128960.

The previous prime is 725499121. The next prime is 725499149. The reversal of 725499140 is 41994527.

725499140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 311946244 + 413552896 = 17662^2 + 20336^2 .

It is not an unprimeable number, because it can be changed into a prime (725499149) 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, 1066571 + ... + 1067250.

It is an arithmetic number, because the mean of its divisors is an integer number (67215393).

Almost surely, 2^725499140 is an apocalyptic number.

It is an amenable number.

725499140 is an abundant number, since it is smaller than the sum of its proper divisors (887670292).

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

725499140 is a wasteful number, since it uses less digits than its factorization.

725499140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133847 (or 2133845 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 725499140 is about 26935.0912380114. The cubic root of 725499140 is about 898.5570045134.

The spelling of 725499140 in words is "seven hundred twenty-five million, four hundred ninety-nine thousand, one hundred forty".