2142020988 has 36 divisors (see below), whose sum is σ = 5431662600. Its totient is φ = 711750816.

The previous prime is 2142020957. The next prime is 2142020999. The reversal of 2142020988 is 8890202412.

2142020988 is a `hidden beast` number, since 21 + 420 + 209 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2142020988² = 9176507826064992288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82438 + ... + 105261.

Almost surely, 2^2142020988 is an apocalyptic number.

It is an amenable number.

2142020988 is an abundant number, since it is smaller than the sum of its proper divisors (3289641612).

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

2142020988 is a wasteful number, since it uses less digits than its factorization.

2142020988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188026 (or 188021 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 2142020988 is about 46281.9726027316. The cubic root of 2142020988 is about 1289.0642790596.

It can be divided in two parts, 214 and 2020988, that added together give a palindrome (2021202).

The spelling of 2142020988 in words is "two billion, one hundred forty-two million, twenty thousand, nine hundred eighty-eight".