22151424 has 36 divisors (see below), whose sum is σ = 58957136. Its totient is φ = 7383552.

The previous prime is 22151417. The next prime is 22151431. The reversal of 22151424 is 42415122.

It is an interprime number because it is at equal distance from previous prime (22151417) and next prime (22151431).

It is a self number, because there is not a number n which added to its sum of digits gives 22151424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13654 + ... + 15189.

Almost surely, 2^22151424 is an apocalyptic number.

22151424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22151424 is an abundant number, since it is smaller than the sum of its proper divisors (36805712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22151424 is an equidigital number, since it uses as much as digits as its factorization.

22151424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28862 (or 28848 counting only the distinct ones).

The product of its digits is 640, while the sum is 21.

The square root of 22151424 is about 4706.5299319137. The cubic root of 22151424 is about 280.8453364676.

Adding to 22151424 its reverse (42415122), we get a palindrome (64566546).

The spelling of 22151424 in words is "twenty-two million, one hundred fifty-one thousand, four hundred twenty-four".