630242959 has 4 divisors (see below), whose sum is σ = 644899816. Its totient is φ = 615586104.

The previous prime is 630242957. The next prime is 630242971. The reversal of 630242959 is 959242036.

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

It is a cyclic number.

It is not a de Polignac number, because 630242959 - 2¹ = 630242957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630242953) 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, 7328364 + ... + 7328449.

It is an arithmetic number, because the mean of its divisors is an integer number (161224954).

Almost surely, 2^630242959 is an apocalyptic number.

630242959 is a deficient number, since it is larger than the sum of its proper divisors (14656857).

630242959 is a wasteful number, since it uses less digits than its factorization.

630242959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14656856.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 630242959 is about 25104.6401886185. The cubic root of 630242959 is about 857.3720748570.

The spelling of 630242959 in words is "six hundred thirty million, two hundred forty-two thousand, nine hundred fifty-nine".