630020832 has 144 divisors (see below), whose sum is σ = 1953504000. Its totient is φ = 177230592.

The previous prime is 630020707. The next prime is 630020837. The reversal of 630020832 is 238020036.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630020837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314169 + ... + 316167.

It is an arithmetic number, because the mean of its divisors is an integer number (13566000).

Almost surely, 2^630020832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630020832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (976752000).

630020832 is an abundant number, since it is smaller than the sum of its proper divisors (1323483168).

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

630020832 is a wasteful number, since it uses less digits than its factorization.

630020832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093 (or 2078 counting only the distinct ones).

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

The square root of 630020832 is about 25100.2157759650. The cubic root of 630020832 is about 857.2713370582.

Adding to 630020832 its reverse (238020036), we get a palindrome (868040868).

The spelling of 630020832 in words is "six hundred thirty million, twenty thousand, eight hundred thirty-two".