725227400 has 48 divisors (see below), whose sum is σ = 1689082740. Its totient is φ = 289587200.

The previous prime is 725227381. The next prime is 725227409. The reversal of 725227400 is 4722527.

It can be written as a sum of positive squares in 6 ways, for example, as 262375204 + 462852196 = 16198^2 + 21514^2 .

It is not an unprimeable number, because it can be changed into a prime (725227409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125372 + ... + 131028.

Almost surely, 2^725227400 is an apocalyptic number.

It is an amenable number.

725227400 is an abundant number, since it is smaller than the sum of its proper divisors (963855340).

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

725227400 is a wasteful number, since it uses less digits than its factorization.

725227400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6314 (or 6305 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 725227400 is about 26930.0464165957. The cubic root of 725227400 is about 898.4448038877. Note that the first 3 decimals are identical.

Adding to 725227400 its reverse (4722527), we get a palindrome (729949927).

The spelling of 725227400 in words is "seven hundred twenty-five million, two hundred twenty-seven thousand, four hundred".