2021432044 has 6 divisors (see below), whose sum is σ = 3537506084. Its totient is φ = 1010716020.

The previous prime is 2021432041. The next prime is 2021432047. The reversal of 2021432044 is 4402341202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2021432041) and next prime (2021432047).

It is not an unprimeable number, because it can be changed into a prime (2021432041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252679002 + ... + 252679009.

Almost surely, 2^2021432044 is an apocalyptic number.

It is an amenable number.

2021432044 is a deficient number, since it is larger than the sum of its proper divisors (1516074040).

2021432044 is a wasteful number, since it uses less digits than its factorization.

2021432044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505358015 (or 505358013 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2021432044 is about 44960.3385663409. The cubic root of 2021432044 is about 1264.4055165194.

Adding to 2021432044 its reverse (4402341202), we get a palindrome (6423773246).

The spelling of 2021432044 in words is "two billion, twenty-one million, four hundred thirty-two thousand, forty-four".