726440630 has 8 divisors (see below), whose sum is σ = 1307593152. Its totient is φ = 290576248.

The previous prime is 726440597. The next prime is 726440641. The reversal of 726440630 is 36044627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36322022 + ... + 36322041.

It is an arithmetic number, because the mean of its divisors is an integer number (163449144).

Almost surely, 2^726440630 is an apocalyptic number.

726440630 is a deficient number, since it is larger than the sum of its proper divisors (581152522).

726440630 is a wasteful number, since it uses less digits than its factorization.

726440630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72644070.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 726440630 is about 26952.5625868859. The cubic root of 726440630 is about 898.9455263386.

The spelling of 726440630 in words is "seven hundred twenty-six million, four hundred forty thousand, six hundred thirty".