2022257 has 8 divisors (see below), whose sum is σ = 2111400. Its totient is φ = 1934464.

The previous prime is 2022253. The next prime is 2022263. The reversal of 2022257 is 7522202.

It can be written as a sum of positive squares in 4 ways, for example, as 678976 + 1343281 = 824^2 + 1159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2022257 - 2² = 2022253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2022253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3719 + ... + 4227.

It is an arithmetic number, because the mean of its divisors is an integer number (263925).

2^2022257 is an apocalyptic number.

It is an amenable number.

2022257 is a deficient number, since it is larger than the sum of its proper divisors (89143).

2022257 is a wasteful number, since it uses less digits than its factorization.

2022257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 2022257 is about 1422.0608285161. The cubic root of 2022257 is about 126.4577496421.

Adding to 2022257 its reverse (7522202), we get a palindrome (9544459).

Subtracting 2022257 from its reverse (7522202), we obtain a palindrome (5499945).

The spelling of 2022257 in words is "two million, twenty-two thousand, two hundred fifty-seven".