725341578 has 96 divisors (see below), whose sum is σ = 1638040320. Its totient is φ = 213857280.

The previous prime is 725341571. The next prime is 725341597. The reversal of 725341578 is 875143527.

It is a super-2 number, since 2×725341578² = 1052240809551060168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (725341571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3034783 + ... + 3035021.

It is an arithmetic number, because the mean of its divisors is an integer number (17062920).

Almost surely, 2^725341578 is an apocalyptic number.

725341578 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 725341578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (819020160).

725341578 is an abundant number, since it is smaller than the sum of its proper divisors (912698742).

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

725341578 is a wasteful number, since it uses less digits than its factorization.

725341578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 371 counting only the distinct ones).

The product of its digits is 235200, while the sum is 42.

The square root of 725341578 is about 26932.1662329639. The cubic root of 725341578 is about 898.4919510528.

The spelling of 725341578 in words is "seven hundred twenty-five million, three hundred forty-one thousand, five hundred seventy-eight".