22145346 has 32 divisors (see below), whose sum is σ = 50803200. Its totient is φ = 7143120.

The previous prime is 22145327. The next prime is 22145363. The reversal of 22145346 is 64354122.

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

22145346 is a modest number, since divided by 5346 gives 2214 as remainder.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4941 + ... + 8288.

It is an arithmetic number, because the mean of its divisors is an integer number (1587600).

Almost surely, 2^22145346 is an apocalyptic number.

22145346 is an abundant number, since it is smaller than the sum of its proper divisors (28657854).

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

22145346 is a wasteful number, since it uses less digits than its factorization.

22145346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13271 (or 13265 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 22145346 is about 4705.8841889702. The cubic root of 22145346 is about 280.8196476135.

Adding to 22145346 its reverse (64354122), we get a palindrome (86499468).

The spelling of 22145346 in words is "twenty-two million, one hundred forty-five thousand, three hundred forty-six".