1629850764 has 12 divisors (see below), whose sum is σ = 3802985144. Its totient is φ = 543283584.

The previous prime is 1629850757. The next prime is 1629850769. The reversal of 1629850764 is 4670589261.

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

It is a super-2 number, since 2×1629850764² = 5312827025822767392, which contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1629850769) 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, 67910437 + ... + 67910460.

Almost surely, 2^1629850764 is an apocalyptic number.

It is an amenable number.

1629850764 is an abundant number, since it is smaller than the sum of its proper divisors (2173134380).

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

1629850764 is a wasteful number, since it uses less digits than its factorization.

1629850764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135820904 (or 135820902 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 1629850764 is about 40371.4102305084. The cubic root of 1629850764 is about 1176.8360043089.

The spelling of 1629850764 in words is "one billion, six hundred twenty-nine million, eight hundred fifty thousand, seven hundred sixty-four".