630237434 has 8 divisors (see below), whose sum is σ = 945464340. Its totient is φ = 315082656.

The previous prime is 630237403. The next prime is 630237437. The reversal of 630237434 is 434732036.

It can be written as a sum of positive squares in 2 ways, for example, as 515426209 + 114811225 = 22703^2 + 10715^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 630237434.

It is not an unprimeable number, because it can be changed into a prime (630237437) 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, 19142 + ... + 40334.

Almost surely, 2^630237434 is an apocalyptic number.

630237434 is a deficient number, since it is larger than the sum of its proper divisors (315226906).

630237434 is a wasteful number, since it uses less digits than its factorization.

630237434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36064.

The product of its (nonzero) digits is 36288, while the sum is 32.

The square root of 630237434 is about 25104.5301489592. The cubic root of 630237434 is about 857.3695694769.

The spelling of 630237434 in words is "six hundred thirty million, two hundred thirty-seven thousand, four hundred thirty-four".