1629423744 has 128 divisors (see below), whose sum is σ = 4707830400. Its totient is φ = 496336896.

The previous prime is 1629423739. The next prime is 1629423773. The reversal of 1629423744 is 4473249261.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 1629423696 and 1629423705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512592 + ... + 515760.

It is an arithmetic number, because the mean of its divisors is an integer number (36779925).

Almost surely, 2^1629423744 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 1629423744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2353915200).

1629423744 is an abundant number, since it is smaller than the sum of its proper divisors (3078406656).

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

1629423744 is a wasteful number, since it uses less digits than its factorization.

1629423744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3302 (or 3290 counting only the distinct ones).

The product of its digits is 290304, while the sum is 42.

The square root of 1629423744 is about 40366.1212404660. The cubic root of 1629423744 is about 1176.7332185374.

The spelling of 1629423744 in words is "one billion, six hundred twenty-nine million, four hundred twenty-three thousand, seven hundred forty-four".