726144320 has 56 divisors (see below), whose sum is σ = 1886334048. Its totient is φ = 264051200.

The previous prime is 726144283. The next prime is 726144343. The reversal of 726144320 is 23441627.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

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, 99626 + ... + 106665.

Almost surely, 2^726144320 is an apocalyptic number.

It is an amenable number.

726144320 is an abundant number, since it is smaller than the sum of its proper divisors (1160189728).

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

726144320 is a wasteful number, since it uses less digits than its factorization.

726144320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206319 (or 206309 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 726144320 is about 26947.0651463197. The cubic root of 726144320 is about 898.8232852072.

Adding to 726144320 its reverse (23441627), we get a palindrome (749585947).

The spelling of 726144320 in words is "seven hundred twenty-six million, one hundred forty-four thousand, three hundred twenty".