630411140 has 24 divisors (see below), whose sum is σ = 1381423680. Its totient is φ = 241200608.

The previous prime is 630411113. The next prime is 630411181. The reversal of 630411140 is 41114036.

It is a super-4 number, since 4×630411140⁴ (a number of 36 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 684770 + ... + 685689.

It is an arithmetic number, because the mean of its divisors is an integer number (57559320).

Almost surely, 2^630411140 is an apocalyptic number.

It is an amenable number.

630411140 is an abundant number, since it is smaller than the sum of its proper divisors (751012540).

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

630411140 is a wasteful number, since it uses less digits than its factorization.

630411140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370491 (or 1370489 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 630411140 is about 25107.9895650767. The cubic root of 630411140 is about 857.4483316226.

Adding to 630411140 its reverse (41114036), we get a palindrome (671525176).

The spelling of 630411140 in words is "six hundred thirty million, four hundred eleven thousand, one hundred forty".