2520922 has 4 divisors (see below), whose sum is σ = 3781386. Its totient is φ = 1260460.

The previous prime is 2520907. The next prime is 2520929. The reversal of 2520922 is 2290252.

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

It can be written as a sum of positive squares in only one way, i.e., 1846881 + 674041 = 1359^2 + 821^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2520893 and 2520902.

It is not an unprimeable number, because it can be changed into a prime (2520929) 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 as a sum of consecutive naturals, namely, 630229 + ... + 630232.

2^2520922 is an apocalyptic number.

2520922 is a deficient number, since it is larger than the sum of its proper divisors (1260464).

2520922 is a wasteful number, since it uses less digits than its factorization.

2520922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260463.

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

The square root of 2520922 is about 1587.7411627844. The cubic root of 2520922 is about 136.0984365201.

The spelling of 2520922 in words is "two million, five hundred twenty thousand, nine hundred twenty-two".