726031128 has 32 divisors (see below), whose sum is σ = 1818144000. Its totient is φ = 241601568.

The previous prime is 726031109. The next prime is 726031139. The reversal of 726031128 is 821130627.

It is a junction number, because it is equal to n+sod(n) for n = 726031095 and 726031104.

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, 10876 + ... + 39627.

It is an arithmetic number, because the mean of its divisors is an integer number (56817000).

Almost surely, 2^726031128 is an apocalyptic number.

It is an amenable number.

726031128 is an abundant number, since it is smaller than the sum of its proper divisors (1092112872).

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

726031128 is a wasteful number, since it uses less digits than its factorization.

726031128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51111 (or 51107 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 726031128 is about 26944.9647986410. The cubic root of 726031128 is about 898.7765796652.

The spelling of 726031128 in words is "seven hundred twenty-six million, thirty-one thousand, one hundred twenty-eight".