726746424 has 32 divisors (see below), whose sum is σ = 1847664000. Its totient is φ = 238142432.

The previous prime is 726746393. The next prime is 726746429. The reversal of 726746424 is 424647627.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726746429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255204 + ... + 258035.

It is an arithmetic number, because the mean of its divisors is an integer number (57739500).

Almost surely, 2^726746424 is an apocalyptic number.

It is an amenable number.

726746424 is an abundant number, since it is smaller than the sum of its proper divisors (1120917576).

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

726746424 is a wasteful number, since it uses less digits than its factorization.

726746424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513307 (or 513303 counting only the distinct ones).

The product of its digits is 451584, while the sum is 42.

The square root of 726746424 is about 26958.2348086814. The cubic root of 726746424 is about 899.0716451955.

The spelling of 726746424 in words is "seven hundred twenty-six million, seven hundred forty-six thousand, four hundred twenty-four".