630446436 has 48 divisors (see below), whose sum is σ = 1648987200. Its totient is φ = 208285056.

The previous prime is 630446431. The next prime is 630446437. The reversal of 630446436 is 634644036.

630446436 is a `hidden beast` number, since 6 + 3 + 0 + 4 + 4 + 643 + 6 = 666.

630446436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 630446436.

It is not an unprimeable number, because it can be changed into a prime (630446431) 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, 13626 + ... + 38033.

It is an arithmetic number, because the mean of its divisors is an integer number (34353900).

Almost surely, 2^630446436 is an apocalyptic number.

It is an amenable number.

630446436 is an abundant number, since it is smaller than the sum of its proper divisors (1018540764).

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

630446436 is a wasteful number, since it uses less digits than its factorization.

630446436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51785 (or 51777 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

The square root of 630446436 is about 25108.6924390738. The cubic root of 630446436 is about 857.4643338417.

The spelling of 630446436 in words is "six hundred thirty million, four hundred forty-six thousand, four hundred thirty-six".