22397109 has 32 divisors (see below), whose sum is σ = 37002240. Its totient is φ = 11757312.

The previous prime is 22397107. The next prime is 22397119. The reversal of 22397109 is 90179322.

It is not a de Polignac number, because 22397109 - 2¹ = 22397107 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22397109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22397107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14622 + ... + 16080.

It is an arithmetic number, because the mean of its divisors is an integer number (1156320).

Almost surely, 2^22397109 is an apocalyptic number.

It is an amenable number.

22397109 is a deficient number, since it is larger than the sum of its proper divisors (14605131).

22397109 is a wasteful number, since it uses less digits than its factorization.

22397109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 22397109 is about 4732.5583990058. The cubic root of 22397109 is about 281.8798215343.

The spelling of 22397109 in words is "twenty-two million, three hundred ninety-seven thousand, one hundred nine".