22222450 has 12 divisors (see below), whose sum is σ = 41333850. Its totient is φ = 8888960.

The previous prime is 22222433. The next prime is 22222471. The reversal of 22222450 is 5422222.

22222450 = T₇₃₂ + T₇₃₃ + ... + T₈₀₆.

It can be written as a sum of positive squares in 3 ways, for example, as 17164449 + 5058001 = 4143^2 + 2249^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 222175 + ... + 222274.

Almost surely, 2^22222450 is an apocalyptic number.

22222450 is a deficient number, since it is larger than the sum of its proper divisors (19111400).

22222450 is a wasteful number, since it uses less digits than its factorization.

22222450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444461 (or 444456 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 22222450 is about 4714.0693673301. The cubic root of 22222450 is about 281.1451823401.

Adding to 22222450 its reverse (5422222), we get a palindrome (27644672).

The spelling of 22222450 in words is "twenty-two million, two hundred twenty-two thousand, four hundred fifty".