725440248 has 48 divisors (see below), whose sum is σ = 2115870120. Its totient is φ = 223212096.

The previous prime is 725440193. The next prime is 725440267. The reversal of 725440248 is 842044527.

725440248 is a `hidden beast` number, since 72 + 544 + 0 + 2 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 386586 + ... + 388457.

Almost surely, 2^725440248 is an apocalyptic number.

725440248 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

725440248 is an abundant number, since it is smaller than the sum of its proper divisors (1390429872).

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

725440248 is a wasteful number, since it uses less digits than its factorization.

725440248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775068 (or 775061 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 725440248 is about 26933.9979950991. The cubic root of 725440248 is about 898.5326905627.

The spelling of 725440248 in words is "seven hundred twenty-five million, four hundred forty thousand, two hundred forty-eight".