630377020 has 48 divisors (see below), whose sum is σ = 1629286848. Its totient is φ = 199503360.

The previous prime is 630376997. The next prime is 630377023. The reversal of 630377020 is 20773036.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 630377020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630377023) 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, 171361 + ... + 175000.

It is an arithmetic number, because the mean of its divisors is an integer number (33943476).

Almost surely, 2^630377020 is an apocalyptic number.

It is an amenable number.

630377020 is an abundant number, since it is smaller than the sum of its proper divisors (998909828).

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

630377020 is a wasteful number, since it uses less digits than its factorization.

630377020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346390 (or 346388 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 28.

The square root of 630377020 is about 25107.3100908879. The cubic root of 630377020 is about 857.4328620013.

The spelling of 630377020 in words is "six hundred thirty million, three hundred seventy-seven thousand, twenty".