1630446684 has 12 divisors (see below), whose sum is σ = 3804375624. Its totient is φ = 543482224.

The previous prime is 1630446679. The next prime is 1630446689. The reversal of 1630446684 is 4866440361.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1630446679) and next prime (1630446689).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630446689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67935267 + ... + 67935290.

It is an arithmetic number, because the mean of its divisors is an integer number (317031302).

Almost surely, 2^1630446684 is an apocalyptic number.

It is an amenable number.

1630446684 is an abundant number, since it is smaller than the sum of its proper divisors (2173928940).

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

1630446684 is a wasteful number, since it uses less digits than its factorization.

1630446684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135870564 (or 135870562 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The square root of 1630446684 is about 40378.7900264483. The cubic root of 1630446684 is about 1176.9794151194.

The spelling of 1630446684 in words is "one billion, six hundred thirty million, four hundred forty-six thousand, six hundred eighty-four".