22207949 has 6 divisors (see below), whose sum is σ = 23216046. Its totient is φ = 21241880.

The previous prime is 22207919. The next prime is 22207973. The reversal of 22207949 is 94970222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12709225 + 9498724 = 3565^2 + 3082^2 .

It is not a de Polignac number, because 22207949 - 2¹⁶ = 22142413 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 (22207919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20462 + ... + 21519.

It is an arithmetic number, because the mean of its divisors is an integer number (3869341).

Almost surely, 2^22207949 is an apocalyptic number.

It is an amenable number.

22207949 is a deficient number, since it is larger than the sum of its proper divisors (1008097).

22207949 is an equidigital number, since it uses as much as digits as its factorization.

22207949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42027 (or 42004 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 22207949 is about 4712.5310609056. The cubic root of 22207949 is about 281.0840163662.

The spelling of 22207949 in words is "twenty-two million, two hundred seven thousand, nine hundred forty-nine".