22141905 has 32 divisors (see below), whose sum is σ = 38734848. Its totient is φ = 10752000.

The previous prime is 22141891. The next prime is 22141907. The reversal of 22141905 is 50914122.

It is not a de Polignac number, because 22141905 - 2⁸ = 22141649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22141907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6505 + ... + 9305.

It is an arithmetic number, because the mean of its divisors is an integer number (1210464).

Almost surely, 2^22141905 is an apocalyptic number.

It is an amenable number.

22141905 is a deficient number, since it is larger than the sum of its proper divisors (16592943).

22141905 is a wasteful number, since it uses less digits than its factorization.

22141905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 22141905 is about 4705.5185686596. The cubic root of 22141905 is about 280.8051020372.

Subtracting from 22141905 its product of nonzero digits (720), we obtain a triangular number (22141185 = T₆₆₅₄).

The spelling of 22141905 in words is "twenty-two million, one hundred forty-one thousand, nine hundred five".