22262428 has 6 divisors (see below), whose sum is σ = 38959256. Its totient is φ = 11131212.

The previous prime is 22262417. The next prime is 22262441. The reversal of 22262428 is 82426222.

It is a junction number, because it is equal to n+sod(n) for n = 22262396 and 22262405.

It is a congruent 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, 2782800 + ... + 2782807.

Almost surely, 2^22262428 is an apocalyptic number.

It is an amenable number.

22262428 is a deficient number, since it is larger than the sum of its proper divisors (16696828).

22262428 is a wasteful number, since it uses less digits than its factorization.

22262428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5565611 (or 5565609 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

The square root of 22262428 is about 4718.3077474874. The cubic root of 22262428 is about 281.3136739455.

It can be divided in two parts, 22 and 262428, that added together give a triangular number (262450 = T₇₂₄).

The spelling of 22262428 in words is "twenty-two million, two hundred sixty-two thousand, four hundred twenty-eight".