22812246 has 32 divisors (see below), whose sum is σ = 50872320. Its totient is φ = 7577352.

The previous prime is 22812233. The next prime is 22812247. The reversal of 22812246 is 64221822.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22812247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20131 + ... + 21233.

It is an arithmetic number, because the mean of its divisors is an integer number (1589760).

Almost surely, 2^22812246 is an apocalyptic number.

22812246 is an abundant number, since it is smaller than the sum of its proper divisors (28060074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22812246 is a wasteful number, since it uses less digits than its factorization.

22812246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497 (or 1491 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 22812246 is about 4776.2167036264. The cubic root of 22812246 is about 283.6107459044.

The spelling of 22812246 in words is "twenty-two million, eight hundred twelve thousand, two hundred forty-six".