22420605 has 8 divisors (see below), whose sum is σ = 35872992. Its totient is φ = 11957648.

The previous prime is 22420591. The next prime is 22420609. The reversal of 22420605 is 50602422.

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 22420605 - 2²¹ = 20323453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22420609) 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, 747339 + ... + 747368.

It is an arithmetic number, because the mean of its divisors is an integer number (4484124).

Almost surely, 2^22420605 is an apocalyptic number.

It is an amenable number.

22420605 is a deficient number, since it is larger than the sum of its proper divisors (13452387).

22420605 is a wasteful number, since it uses less digits than its factorization.

22420605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494715.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 22420605 is about 4735.0401265459. The cubic root of 22420605 is about 281.9783570735.

The spelling of 22420605 in words is "twenty-two million, four hundred twenty thousand, six hundred five".