1629913536 has 112 divisors (see below), whose sum is σ = 4946375680. Its totient is φ = 525761280.

The previous prime is 1629913531. The next prime is 1629913547. The reversal of 1629913536 is 6353199261.

1629913536 is a `hidden beast` number, since 1 + 6 + 29 + 91 + 3 + 536 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1629913491 and 1629913500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1629913531) 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, 38355 + ... + 68781.

Almost surely, 2^1629913536 is an apocalyptic number.

1629913536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1629913536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2473187840).

1629913536 is an abundant number, since it is smaller than the sum of its proper divisors (3316462144).

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

1629913536 is a wasteful number, since it uses less digits than its factorization.

1629913536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30479 (or 30463 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 1629913536 is about 40372.1876543741. The cubic root of 1629913536 is about 1176.8511123181.

The spelling of 1629913536 in words is "one billion, six hundred twenty-nine million, nine hundred thirteen thousand, five hundred thirty-six".