1630738672 has 40 divisors (see below), whose sum is σ = 3272223600. Its totient is φ = 786358272.

The previous prime is 1630738657. The next prime is 1630738679. The reversal of 1630738672 is 2768370361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630738679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605104 + ... + 607792.

It is an arithmetic number, because the mean of its divisors is an integer number (81805590).

Almost surely, 2^1630738672 is an apocalyptic number.

It is an amenable number.

1630738672 is an abundant number, since it is smaller than the sum of its proper divisors (1641484928).

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

1630738672 is a wasteful number, since it uses less digits than its factorization.

1630738672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033 (or 4027 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 1630738672 is about 40382.4054756524. The cubic root of 1630738672 is about 1177.0496705809.

The spelling of 1630738672 in words is "one billion, six hundred thirty million, seven hundred thirty-eight thousand, six hundred seventy-two".