22920073 has 4 divisors (see below), whose sum is σ = 25003728. Its totient is φ = 20836420.

The previous prime is 22920049. The next prime is 22920077. The reversal of 22920073 is 37002922.

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 not a de Polignac number, because 22920073 - 2¹³ = 22911881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22920077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1041811 + ... + 1041832.

It is an arithmetic number, because the mean of its divisors is an integer number (6250932).

Almost surely, 2^22920073 is an apocalyptic number.

It is an amenable number.

22920073 is a deficient number, since it is larger than the sum of its proper divisors (2083655).

22920073 is a wasteful number, since it uses less digits than its factorization.

22920073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083654.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 22920073 is about 4787.4913054751. The cubic root of 22920073 is about 284.0568928208.

Adding to 22920073 its reverse (37002922), we get a palindrome (59922995).

It can be divided in two parts, 229 and 20073, that added together give a palindrome (20302).

The spelling of 22920073 in words is "twenty-two million, nine hundred twenty thousand, seventy-three".