630233105440 has 24 divisors (see below), whose sum is σ = 1488925711980. Its totient is φ = 252093242112.

The previous prime is 630233105407. The next prime is 630233105483. The reversal of 630233105440 is 44501332036.

It can be written as a sum of positive squares in 2 ways, for example, as 606710135056 + 23522970384 = 778916^2 + 153372^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1969478295 + ... + 1969478614.

Almost surely, 2^630233105440 is an apocalyptic number.

It is an amenable number.

630233105440 is an abundant number, since it is smaller than the sum of its proper divisors (858692606540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630233105440 is a wasteful number, since it uses less digits than its factorization.

630233105440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3938956924 (or 3938956916 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 630233105440 its reverse (44501332036), we get a palindrome (674734437476).

The spelling of 630233105440 in words is "six hundred thirty billion, two hundred thirty-three million, one hundred five thousand, four hundred forty".