630430800 has 60 divisors (see below), whose sum is σ = 2019483840. Its totient is φ = 168114560.

The previous prime is 630430793. The next prime is 630430903. The reversal of 630430800 is 8034036.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (24).

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 11 ways as a sum of consecutive naturals, for example, 261480 + ... + 263879.

It is an arithmetic number, because the mean of its divisors is an integer number (33658064).

Almost surely, 2^630430800 is an apocalyptic number.

630430800 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

630430800 is an abundant number, since it is smaller than the sum of its proper divisors (1389053040).

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

630430800 is a wasteful number, since it uses less digits than its factorization.

630430800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525380 (or 525369 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 630430800 is about 25108.3810708695. The cubic root of 630430800 is about 857.4572449904.

Adding to 630430800 its reverse (8034036), we get a palindrome (638464836).

The spelling of 630430800 in words is "six hundred thirty million, four hundred thirty thousand, eight hundred".