22291969 has 8 divisors (see below), whose sum is σ = 25508288. Its totient is φ = 19083600.

The previous prime is 22291967. The next prime is 22291999. The reversal of 22291969 is 96919222.

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 22291969 - 2¹ = 22291967 is a prime.

It is a super-2 number, since 2×22291969² = 993863763793922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (22291961) 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, 6394 + ... + 9244.

It is an arithmetic number, because the mean of its divisors is an integer number (3188536).

Almost surely, 2^22291969 is an apocalyptic number.

It is an amenable number.

22291969 is a deficient number, since it is larger than the sum of its proper divisors (3216319).

22291969 is a wasteful number, since it uses less digits than its factorization.

22291969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975.

The product of its digits is 34992, while the sum is 40.

The square root of 22291969 is about 4721.4371752677. The cubic root of 22291969 is about 281.4380481331.

The spelling of 22291969 in words is "twenty-two million, two hundred ninety-one thousand, nine hundred sixty-nine".