2022739 has 4 divisors (see below), whose sum is σ = 2065824. Its totient is φ = 1979656.

The previous prime is 2022737. The next prime is 2022743. The reversal of 2022739 is 9372202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2022739 - 2¹ = 2022737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2022731) 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, 21472 + ... + 21565.

It is an arithmetic number, because the mean of its divisors is an integer number (516456).

2^2022739 is an apocalyptic number.

2022739 is a deficient number, since it is larger than the sum of its proper divisors (43085).

2022739 is an equidigital number, since it uses as much as digits as its factorization.

2022739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43084.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 2022739 is about 1422.2302907757. The cubic root of 2022739 is about 126.4677958089.

The spelling of 2022739 in words is "two million, twenty-two thousand, seven hundred thirty-nine".