22408461 has 16 divisors (see below), whose sum is σ = 33971520. Its totient is φ = 14590800.

The previous prime is 22408459. The next prime is 22408471. The reversal of 22408461 is 16480422.

It is not a de Polignac number, because 22408461 - 2¹ = 22408459 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22408471) 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, 8490 + ... + 10811.

It is an arithmetic number, because the mean of its divisors is an integer number (2123220).

Almost surely, 2^22408461 is an apocalyptic number.

It is an amenable number.

22408461 is a deficient number, since it is larger than the sum of its proper divisors (11563059).

22408461 is a wasteful number, since it uses less digits than its factorization.

22408461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19353 (or 19347 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 22408461 is about 4733.7575983567. The cubic root of 22408461 is about 281.9274371925.

Adding to 22408461 its reverse (16480422), we get a palindrome (38888883).

It can be divided in two parts, 2240 and 8461, that added together give a palindrome (10701).

The spelling of 22408461 in words is "twenty-two million, four hundred eight thousand, four hundred sixty-one".