2522290 has 32 divisors (see below), whose sum is σ = 4949424. Its totient is φ = 921600.

The previous prime is 2522281. The next prime is 2522293. The reversal of 2522290 is 922252.

It can be written as a sum of positive squares in 8 ways, for example, as 2474329 + 47961 = 1573^2 + 219^2 .

It is not an unprimeable number, because it can be changed into a prime (2522293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6090 + ... + 6490.

2^2522290 is an apocalyptic number.

2522290 is a deficient number, since it is larger than the sum of its proper divisors (2427134).

2522290 is a wasteful number, since it uses less digits than its factorization.

2522290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2522290 is about 1588.1719050531. The cubic root of 2522290 is about 136.1230503973.

The spelling of 2522290 in words is "two million, five hundred twenty-two thousand, two hundred ninety".