2021269892 has 48 divisors (see below), whose sum is σ = 3711689520. Its totient is φ = 962150400.

The previous prime is 2021269891. The next prime is 2021269903. The reversal of 2021269892 is 2989621202.

It can be written as a sum of positive squares in 8 ways, for example, as 139098436 + 1882171456 = 11794^2 + 43384^2 .

It is not an unprimeable number, because it can be changed into a prime (2021269891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2175284 + ... + 2176212.

It is an arithmetic number, because the mean of its divisors is an integer number (77326865).

Almost surely, 2^2021269892 is an apocalyptic number.

It is an amenable number.

2021269892 is a deficient number, since it is larger than the sum of its proper divisors (1690419628).

2021269892 is a wasteful number, since it uses less digits than its factorization.

2021269892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 2021269892 is about 44958.5352519408. The cubic root of 2021269892 is about 1264.3717069294.

The spelling of 2021269892 in words is "two billion, twenty-one million, two hundred sixty-nine thousand, eight hundred ninety-two".