630231740 has 24 divisors (see below), whose sum is σ = 1381030560. Its totient is φ = 241131968.

The previous prime is 630231739. The next prime is 630231751. The reversal of 630231740 is 47132036.

It is a super-2 number, since 2×630231740² = 794384092206855200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684575 + ... + 685494.

It is an arithmetic number, because the mean of its divisors is an integer number (57542940).

Almost surely, 2^630231740 is an apocalyptic number.

It is an amenable number.

630231740 is an abundant number, since it is smaller than the sum of its proper divisors (750798820).

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

630231740 is a wasteful number, since it uses less digits than its factorization.

630231740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370101 (or 1370099 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 630231740 is about 25104.4167428761. The cubic root of 630231740 is about 857.3669874463.

Adding to 630231740 its reverse (47132036), we get a palindrome (677363776).

The spelling of 630231740 in words is "six hundred thirty million, two hundred thirty-one thousand, seven hundred forty".