726401560 has 32 divisors (see below), whose sum is σ = 1636346160. Its totient is φ = 290215296.

The previous prime is 726401531. The next prime is 726401561. The reversal of 726401560 is 65104627.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726401561) 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, 24727 + ... + 45433.

Almost surely, 2^726401560 is an apocalyptic number.

It is an amenable number.

726401560 is an abundant number, since it is smaller than the sum of its proper divisors (909944600).

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

726401560 is a wasteful number, since it uses less digits than its factorization.

726401560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21595 (or 21591 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 726401560 is about 26951.8377852049. The cubic root of 726401560 is about 898.9294101184.

The spelling of 726401560 in words is "seven hundred twenty-six million, four hundred one thousand, five hundred sixty".