22420649 has 8 divisors (see below), whose sum is σ = 22921440. Its totient is φ = 21924000.

The previous prime is 22420633. The next prime is 22420667. The reversal of 22420649 is 94602422.

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 22420649 - 2⁴ = 22420633 is a prime.

It is a Duffinian 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, 11549 + ... + 13349.

It is an arithmetic number, because the mean of its divisors is an integer number (2865180).

Almost surely, 2^22420649 is an apocalyptic number.

It is an amenable number.

22420649 is a deficient number, since it is larger than the sum of its proper divisors (500791).

22420649 is a wasteful number, since it uses less digits than its factorization.

22420649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 22420649 is about 4735.0447727556. The cubic root of 22420649 is about 281.9785415323.

The spelling of 22420649 in words is "twenty-two million, four hundred twenty thousand, six hundred forty-nine".