22149432 has 24 divisors (see below), whose sum is σ = 59988240. Its totient is φ = 7383120.

The previous prime is 22149431. The next prime is 22149433. The reversal of 22149432 is 23494122.

22149432 is a `hidden beast` number, since 221 + 4 + 9 + 432 = 666.

It is an interprime number because it is at equal distance from previous prime (22149431) and next prime (22149433).

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22149396 and 22149405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22149431) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 153744 + ... + 153887.

It is an arithmetic number, because the mean of its divisors is an integer number (2499510).

Almost surely, 2^22149432 is an apocalyptic number.

It is an amenable number.

22149432 is an abundant number, since it is smaller than the sum of its proper divisors (37838808).

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

22149432 is a wasteful number, since it uses less digits than its factorization.

22149432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307643 (or 307636 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 22149432 is about 4706.3183062772. The cubic root of 22149432 is about 280.8369177360.

The spelling of 22149432 in words is "twenty-two million, one hundred forty-nine thousand, four hundred thirty-two".