726440632 has 8 divisors (see below), whose sum is σ = 1362076200. Its totient is φ = 363220312.

The previous prime is 726440597. The next prime is 726440641. The reversal of 726440632 is 236044627.

726440632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45402532 + ... + 45402547.

It is an arithmetic number, because the mean of its divisors is an integer number (170259525).

Almost surely, 2^726440632 is an apocalyptic number.

It is an amenable number.

726440632 is a deficient number, since it is larger than the sum of its proper divisors (635635568).

726440632 is a wasteful number, since it uses less digits than its factorization.

726440632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90805085 (or 90805081 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 726440632 is about 26952.5626239881. The cubic root of 726440632 is about 898.9455271636.

The spelling of 726440632 in words is "seven hundred twenty-six million, four hundred forty thousand, six hundred thirty-two".