630040020 has 48 divisors (see below), whose sum is σ = 1781595648. Its totient is φ = 166345600.

The previous prime is 630040003. The next prime is 630040027. The reversal of 630040020 is 20040036.

630040020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630040027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45924 + ... + 58043.

It is an arithmetic number, because the mean of its divisors is an integer number (37116576).

Almost surely, 2^630040020 is an apocalyptic number.

630040020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

630040020 is an abundant number, since it is smaller than the sum of its proper divisors (1151555628).

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

630040020 is a wasteful number, since it uses less digits than its factorization.

630040020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104080 (or 104078 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 630040020 is about 25100.5980008445. The cubic root of 630040020 is about 857.2800400273.

Adding to 630040020 its reverse (20040036), we get a palindrome (650080056).

The spelling of 630040020 in words is "six hundred thirty million, forty thousand, twenty".