22091437 has 8 divisors (see below), whose sum is σ = 23127552. Its totient is φ = 21075600.

The previous prime is 22091423. The next prime is 22091453. The reversal of 22091437 is 73419022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22091437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22091467) 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, 2818 + ... + 7219.

It is an arithmetic number, because the mean of its divisors is an integer number (2890944).

Almost surely, 2^22091437 is an apocalyptic number.

It is an amenable number.

22091437 is a deficient number, since it is larger than the sum of its proper divisors (1036115).

22091437 is a wasteful number, since it uses less digits than its factorization.

22091437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10139.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 22091437 is about 4700.1528698543. The cubic root of 22091437 is about 280.5915935683.

The spelling of 22091437 in words is "twenty-two million, ninety-one thousand, four hundred thirty-seven".