22432406 has 16 divisors (see below), whose sum is σ = 36246528. Its totient is φ = 10381800.

The previous prime is 22432393. The next prime is 22432411. The reversal of 22432406 is 60423422.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6440 + ... + 9291.

It is an arithmetic number, because the mean of its divisors is an integer number (2265408).

Almost surely, 2^22432406 is an apocalyptic number.

22432406 is a deficient number, since it is larger than the sum of its proper divisors (13814122).

22432406 is a wasteful number, since it uses less digits than its factorization.

22432406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15787.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 22432406 is about 4736.2860977775. The cubic root of 22432406 is about 282.0278211406.

Adding to 22432406 its reverse (60423422), we get a palindrome (82855828).

The spelling of 22432406 in words is "twenty-two million, four hundred thirty-two thousand, four hundred six".