630367726 has 4 divisors (see below), whose sum is σ = 945551592. Its totient is φ = 315183862.

The previous prime is 630367711. The next prime is 630367747. The reversal of 630367726 is 627763036.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×630367726² = 794726939964822152, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 157591930 + ... + 157591933.

It is an arithmetic number, because the mean of its divisors is an integer number (236387898).

Almost surely, 2^630367726 is an apocalyptic number.

630367726 is a deficient number, since it is larger than the sum of its proper divisors (315183866).

630367726 is a wasteful number, since it uses less digits than its factorization.

630367726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315183865.

The product of its (nonzero) digits is 190512, while the sum is 40.

The square root of 630367726 is about 25107.1250046675. The cubic root of 630367726 is about 857.4286481102.

The spelling of 630367726 in words is "six hundred thirty million, three hundred sixty-seven thousand, seven hundred twenty-six".