630602645 has 8 divisors (see below), whose sum is σ = 758212920. Its totient is φ = 503488960.

The previous prime is 630602633. The next prime is 630602653. The reversal of 630602645 is 546206036.

It can be written as a sum of positive squares in 4 ways, for example, as 158105476 + 472497169 = 12574^2 + 21737^2 .

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

It is not a de Polignac number, because 630602645 - 2⁸ = 630602389 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121346 + ... + 126435.

It is an arithmetic number, because the mean of its divisors is an integer number (94776615).

Almost surely, 2^630602645 is an apocalyptic number.

It is an amenable number.

630602645 is a deficient number, since it is larger than the sum of its proper divisors (127610275).

630602645 is a wasteful number, since it uses less digits than its factorization.

630602645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248295.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 630602645 is about 25111.8029022211. The cubic root of 630602645 is about 857.5351474627.

The spelling of 630602645 in words is "six hundred thirty million, six hundred two thousand, six hundred forty-five".