22069421 has 8 divisors (see below), whose sum is σ = 24165984. Its totient is φ = 19987920.

The previous prime is 22069403. The next prime is 22069429. The reversal of 22069421 is 12496022.

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-22069421 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 (22069429) 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, 575 + ... + 6668.

It is an arithmetic number, because the mean of its divisors is an integer number (3020748).

Almost surely, 2^22069421 is an apocalyptic number.

It is an amenable number.

22069421 is a deficient number, since it is larger than the sum of its proper divisors (2096563).

22069421 is a wasteful number, since it uses less digits than its factorization.

22069421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7531.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 22069421 is about 4697.8102345667. The cubic root of 22069421 is about 280.4983514402.

The spelling of 22069421 in words is "twenty-two million, sixty-nine thousand, four hundred twenty-one".