726111990 has 48 divisors (see below), whose sum is σ = 1998947808. Its totient is φ = 182239488.

The previous prime is 726111983. The next prime is 726112003. The reversal of 726111990 is 99111627.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 235762 + ... + 238821.

It is an arithmetic number, because the mean of its divisors is an integer number (41644746).

Almost surely, 2^726111990 is an apocalyptic number.

726111990 is an abundant number, since it is smaller than the sum of its proper divisors (1272835818).

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

726111990 is a wasteful number, since it uses less digits than its factorization.

726111990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474613 (or 474610 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 726111990 is about 26946.4652598444. The cubic root of 726111990 is about 898.8099456239.

The spelling of 726111990 in words is "seven hundred twenty-six million, one hundred eleven thousand, nine hundred ninety".