22373865 has 12 divisors (see below), whose sum is σ = 38781444. Its totient is φ = 11932704.

The previous prime is 22373861. The next prime is 22373867. The reversal of 22373865 is 56837322.

It can be written as a sum of positive squares in 2 ways, for example, as 7420176 + 14953689 = 2724^2 + 3867^2 .

It is not a de Polignac number, because 22373865 - 2² = 22373861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22373861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248554 + ... + 248643.

It is an arithmetic number, because the mean of its divisors is an integer number (3231787).

Almost surely, 2^22373865 is an apocalyptic number.

It is an amenable number.

22373865 is a deficient number, since it is larger than the sum of its proper divisors (16407579).

22373865 is a wasteful number, since it uses less digits than its factorization.

22373865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497208 (or 497205 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 22373865 is about 4730.1020073567. The cubic root of 22373865 is about 281.7822749794.

It can be divided in two parts, 223 and 73865, that added together give a cube (74088 = 42³).

The spelling of 22373865 in words is "twenty-two million, three hundred seventy-three thousand, eight hundred sixty-five".