726139032 has 32 divisors (see below), whose sum is σ = 1842446400. Its totient is φ = 238433184.

The previous prime is 726139027. The next prime is 726139087. The reversal of 726139032 is 230931627.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 726138984 and 726139002.

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, 224182 + ... + 227397.

It is an arithmetic number, because the mean of its divisors is an integer number (57576450).

Almost surely, 2^726139032 is an apocalyptic number.

It is an amenable number.

726139032 is an abundant number, since it is smaller than the sum of its proper divisors (1116307368).

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

726139032 is a wasteful number, since it uses less digits than its factorization.

726139032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451655 (or 451651 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 726139032 is about 26946.9670278493. The cubic root of 726139032 is about 898.8211033686.

The spelling of 726139032 in words is "seven hundred twenty-six million, one hundred thirty-nine thousand, thirty-two".