22273949 has 4 divisors (see below), whose sum is σ = 22606464. Its totient is φ = 21941436.

The previous prime is 22273897. The next prime is 22273973. The reversal of 22273949 is 94937222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22273949 - 2¹² = 22269853 is a prime.

It is a super-2 number, since 2×22273949² = 992257608109202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22270949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166157 + ... + 166290.

It is an arithmetic number, because the mean of its divisors is an integer number (5651616).

Almost surely, 2^22273949 is an apocalyptic number.

It is an amenable number.

22273949 is a deficient number, since it is larger than the sum of its proper divisors (332515).

22273949 is an equidigital number, since it uses as much as digits as its factorization.

22273949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332514.

The product of its digits is 54432, while the sum is 38.

The square root of 22273949 is about 4719.5284722099. The cubic root of 22273949 is about 281.3621930006.

The spelling of 22273949 in words is "twenty-two million, two hundred seventy-three thousand, nine hundred forty-nine".