726639152 has 20 divisors (see below), whose sum is σ = 1445914896. Its totient is φ = 353499840.

The previous prime is 726639127. The next prime is 726639157. The reversal of 726639152 is 251936627.

It is not an unprimeable number, because it can be changed into a prime (726639157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613124 + ... + 614307.

Almost surely, 2^726639152 is an apocalyptic number.

It is an amenable number.

726639152 is a deficient number, since it is larger than the sum of its proper divisors (719275744).

726639152 is a wasteful number, since it uses less digits than its factorization.

726639152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227476 (or 1227470 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 726639152 is about 26956.2451391139. The cubic root of 726639152 is about 899.0274069504.

The spelling of 726639152 in words is "seven hundred twenty-six million, six hundred thirty-nine thousand, one hundred fifty-two".