726021250 has 40 divisors (see below), whose sum is σ = 1374310080. Its totient is φ = 287538000.

The previous prime is 726021211. The next prime is 726021251. The reversal of 726021250 is 52120627.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (726021251) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 125931 + ... + 131569.

It is an arithmetic number, because the mean of its divisors is an integer number (34357752).

Almost surely, 2^726021250 is an apocalyptic number.

726021250 is a deficient number, since it is larger than the sum of its proper divisors (648288830).

726021250 is a wasteful number, since it uses less digits than its factorization.

726021250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5764 (or 5749 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 726021250 is about 26944.7814984646. The cubic root of 726021250 is about 898.7725035519.

Adding to 726021250 its reverse (52120627), we get a palindrome (778141877).

The spelling of 726021250 in words is "seven hundred twenty-six million, twenty-one thousand, two hundred fifty".