726220430 has 16 divisors (see below), whose sum is σ = 1407750624. Its totient is φ = 268142880.

The previous prime is 726220427. The next prime is 726220441. The reversal of 726220430 is 34022627.

It is a super-2 number, since 2×726220430² = 1054792225898769800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 726220430.

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, 2793026 + ... + 2793285.

It is an arithmetic number, because the mean of its divisors is an integer number (87984414).

Almost surely, 2^726220430 is an apocalyptic number.

726220430 is a deficient number, since it is larger than the sum of its proper divisors (681530194).

726220430 is a wasteful number, since it uses less digits than its factorization.

726220430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586331.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 726220430 is about 26948.4773224759. The cubic root of 726220430 is about 898.8546871606.

The spelling of 726220430 in words is "seven hundred twenty-six million, two hundred twenty thousand, four hundred thirty".