630193641 has 32 divisors (see below), whose sum is σ = 1058006016. Its totient is φ = 324120000.

The previous prime is 630193633. The next prime is 630193643. The reversal of 630193641 is 146391036.

It is not a de Polignac number, because 630193641 - 2³ = 630193633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (630193643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9826 + ... + 36836.

It is an arithmetic number, because the mean of its divisors is an integer number (33062688).

Almost surely, 2^630193641 is an apocalyptic number.

It is an amenable number.

630193641 is a deficient number, since it is larger than the sum of its proper divisors (427812375).

630193641 is a wasteful number, since it uses less digits than its factorization.

630193641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27133.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 630193641 is about 25103.6579207095. The cubic root of 630193641 is about 857.3497104771.

The spelling of 630193641 in words is "six hundred thirty million, one hundred ninety-three thousand, six hundred forty-one".