22251430 has 16 divisors (see below), whose sum is σ = 41135760. Its totient is φ = 8659872.

The previous prime is 22251421. The next prime is 22251473. The reversal of 22251430 is 3415222.

It is a super-2 number, since 2×22251430² = 990252274089800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22251398 and 22251407.

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 in 7 ways as a sum of consecutive naturals, for example, 29700 + ... + 30439.

It is an arithmetic number, because the mean of its divisors is an integer number (2570985).

Almost surely, 2^22251430 is an apocalyptic number.

22251430 is a deficient number, since it is larger than the sum of its proper divisors (18884330).

22251430 is a wasteful number, since it uses less digits than its factorization.

22251430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60183.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 22251430 is about 4717.1421432897. The cubic root of 22251430 is about 281.2673418113.

Adding to 22251430 its reverse (3415222), we get a palindrome (25666652).

It can be divided in two parts, 2225 and 1430, that added together give a triangular number (3655 = T₈₅).

The spelling of 22251430 in words is "twenty-two million, two hundred fifty-one thousand, four hundred thirty".