22009932 has 72 divisors (see below), whose sum is σ = 64087296. Its totient is φ = 6238944.

The previous prime is 22009921. The next prime is 22009943. The reversal of 22009932 is 23990022.

22009932 = T₁₈₃ + T₁₈₄ + ... + T₅₁₆.

It is an interprime number because it is at equal distance from previous prime (22009921) and next prime (22009943).

It is a junction number, because it is equal to n+sod(n) for n = 22009896 and 22009905.

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 23 ways as a sum of consecutive naturals, for example, 41823 + ... + 42345.

Almost surely, 2^22009932 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22009932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32043648).

22009932 is an abundant number, since it is smaller than the sum of its proper divisors (42077364).

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

22009932 is a wasteful number, since it uses less digits than its factorization.

22009932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707 (or 702 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 22009932 is about 4691.4743951129. The cubic root of 22009932 is about 280.2460931681.

Adding to 22009932 its reverse (23990022), we get a palindrome (45999954).

The spelling of 22009932 in words is "twenty-two million, nine thousand, nine hundred thirty-two".