22250431 has 8 divisors (see below), whose sum is σ = 26116640. Its totient is φ = 18556128.

The previous prime is 22250419. The next prime is 22250443. The reversal of 22250431 is 13405222.

It is an interprime number because it is at equal distance from previous prime (22250419) and next prime (22250443).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22250431 - 2¹⁷ = 22119359 is a prime.

It is a super-2 number, since 2×22250431² = 990163359371522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22250399 and 22250408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22250471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42696 + ... + 43213.

It is an arithmetic number, because the mean of its divisors is an integer number (3264580).

Almost surely, 2^22250431 is an apocalyptic number.

22250431 is a deficient number, since it is larger than the sum of its proper divisors (3866209).

22250431 is an equidigital number, since it uses as much as digits as its factorization.

22250431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85953.

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

The square root of 22250431 is about 4717.0362517157. The cubic root of 22250431 is about 281.2631324897.

Adding to 22250431 its reverse (13405222), we get a palindrome (35655653).

It can be divided in two parts, 222 and 50431, that added together give a cube (50653 = 37³).

The spelling of 22250431 in words is "twenty-two million, two hundred fifty thousand, four hundred thirty-one".