2538922 has 4 divisors (see below), whose sum is σ = 3808386. Its totient is φ = 1269460.

The previous prime is 2538919. The next prime is 2538953. The reversal of 2538922 is 2298352.

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., 1745041 + 793881 = 1321^2 + 891^2 .

It is a super-4 number, since 4×2538922⁴ (a number of 27 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is an unprimeable number.

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, 634729 + ... + 634732.

2^2538922 is an apocalyptic number.

2538922 is a deficient number, since it is larger than the sum of its proper divisors (1269464).

2538922 is a wasteful number, since it uses less digits than its factorization.

2538922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269463.

The product of its digits is 8640, while the sum is 31.

The square root of 2538922 is about 1593.3995104807. The cubic root of 2538922 is about 136.4215939760.

The spelling of 2538922 in words is "two million, five hundred thirty-eight thousand, nine hundred twenty-two".