22245146 has 64 divisors (see below), whose sum is σ = 45722880. Its totient is φ = 7848960.

The previous prime is 22245133. The next prime is 22245151. The reversal of 22245146 is 64154222.

It is a super-2 number, since 2×22245146² = 989693041122632, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75776 + ... + 76068.

It is an arithmetic number, because the mean of its divisors is an integer number (714420).

Almost surely, 2^22245146 is an apocalyptic number.

22245146 is an abundant number, since it is smaller than the sum of its proper divisors (23477734).

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

22245146 is a wasteful number, since it uses less digits than its factorization.

22245146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359.

The product of its digits is 3840, while the sum is 26.

The square root of 22245146 is about 4716.4760149925. The cubic root of 22245146 is about 281.2408618595.

Adding to 22245146 its reverse (64154222), we get a palindrome (86399368).

The spelling of 22245146 in words is "twenty-two million, two hundred forty-five thousand, one hundred forty-six".