24221406 has 32 divisors (see below), whose sum is σ = 54141696. Its totient is φ = 7160000.

The previous prime is 24221399. The next prime is 24221411. The reversal of 24221406 is 60412242.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1770 + ... + 7181.

It is an arithmetic number, because the mean of its divisors is an integer number (1691928).

Almost surely, 2^24221406 is an apocalyptic number.

24221406 is an abundant number, since it is smaller than the sum of its proper divisors (29920290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

24221406 is a wasteful number, since it uses less digits than its factorization.

24221406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9008.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 24221406 is about 4921.5247637292. The cubic root of 24221406 is about 289.3342078567.

Adding to 24221406 its reverse (60412242), we get a palindrome (84633648).

It can be divided in two parts, 2422 and 1406, that added together give a triangular number (3828 = T₈₇).

The spelling of 24221406 in words is "twenty-four million, two hundred twenty-one thousand, four hundred six".