22146405 has 16 divisors (see below), whose sum is σ = 35562240. Its totient is φ = 11768768.

The previous prime is 22146403. The next prime is 22146413. The reversal of 22146405 is 50464122.

It is a cyclic number.

It is not a de Polignac number, because 22146405 - 2¹ = 22146403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22146403) 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, 1876 + ... + 6914.

It is an arithmetic number, because the mean of its divisors is an integer number (2222640).

Almost surely, 2^22146405 is an apocalyptic number.

It is an amenable number.

22146405 is a deficient number, since it is larger than the sum of its proper divisors (13415835).

22146405 is a wasteful number, since it uses less digits than its factorization.

22146405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5340.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 22146405 is about 4705.9967063312. The cubic root of 22146405 is about 280.8241238477.

The spelling of 22146405 in words is "twenty-two million, one hundred forty-six thousand, four hundred five".