22109408 has 12 divisors (see below), whose sum is σ = 43527960. Its totient is φ = 11054688.

The previous prime is 22109383. The next prime is 22109429. The reversal of 22109408 is 80490122.

It is a super-2 number, since 2×22109408² = 977651844220928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345428 + ... + 345491.

It is an arithmetic number, because the mean of its divisors is an integer number (3627330).

Almost surely, 2^22109408 is an apocalyptic number.

It is an amenable number.

22109408 is a deficient number, since it is larger than the sum of its proper divisors (21418552).

22109408 is an equidigital number, since it uses as much as digits as its factorization.

22109408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690929 (or 690921 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 22109408 is about 4702.0642275494. The cubic root of 22109408 is about 280.6676584076.

The spelling of 22109408 in words is "twenty-two million, one hundred nine thousand, four hundred eight".