1630169344 has 72 divisors (see below), whose sum is σ = 3512900160. Its totient is φ = 752683008.

The previous prime is 1630169341. The next prime is 1630169363. The reversal of 1630169344 is 4439610361.

It is not an unprimeable number, because it can be changed into a prime (1630169341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165979 + ... + 175525.

It is an arithmetic number, because the mean of its divisors is an integer number (48790280).

Almost surely, 2^1630169344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630169344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1756450080).

1630169344 is an abundant number, since it is smaller than the sum of its proper divisors (1882730816).

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

1630169344 is an equidigital number, since it uses as much as digits as its factorization.

1630169344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9615 (or 9601 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 1630169344 is about 40375.3556516844. The cubic root of 1630169344 is about 1176.9126763571.

The spelling of 1630169344 in words is "one billion, six hundred thirty million, one hundred sixty-nine thousand, three hundred forty-four".