22381461 has 24 divisors (see below), whose sum is σ = 34684160. Its totient is φ = 14263128.

The previous prime is 22381459. The next prime is 22381483. The reversal of 22381461 is 16418322.

It is not a de Polignac number, because 22381461 - 2¹ = 22381459 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22381441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13500 + ... + 15066.

Almost surely, 2^22381461 is an apocalyptic number.

It is an amenable number.

22381461 is a deficient number, since it is larger than the sum of its proper divisors (12302699).

22381461 is a wasteful number, since it uses less digits than its factorization.

22381461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622 (or 1593 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 22381461 is about 4730.9048817325. The cubic root of 22381461 is about 281.8141600378.

Adding to 22381461 its reverse (16418322), we get a palindrome (38799783).

The spelling of 22381461 in words is "twenty-two million, three hundred eighty-one thousand, four hundred sixty-one".