726646632 has 16 divisors (see below), whose sum is σ = 1816616640. Its totient is φ = 242215536.

The previous prime is 726646631. The next prime is 726646633. The reversal of 726646632 is 236646627.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (726646631) and next prime (726646633).

It is not an unprimeable number, because it can be changed into a prime (726646631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15138448 + ... + 15138495.

It is an arithmetic number, because the mean of its divisors is an integer number (113538540).

Almost surely, 2^726646632 is an apocalyptic number.

It is an amenable number.

726646632 is an abundant number, since it is smaller than the sum of its proper divisors (1089970008).

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

726646632 is a wasteful number, since it uses less digits than its factorization.

726646632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30276952 (or 30276948 counting only the distinct ones).

The product of its digits is 435456, while the sum is 42.

The square root of 726646632 is about 26956.3838821159. The cubic root of 726646632 is about 899.0304917929.

The spelling of 726646632 in words is "seven hundred twenty-six million, six hundred forty-six thousand, six hundred thirty-two".