22421481 has 8 divisors (see below), whose sum is σ = 31195200. Its totient is φ = 14297712.

The previous prime is 22421479. The next prime is 22421513. The reversal of 22421481 is 18412422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22421481 - 2¹ = 22421479 is a prime.

It is a super-2 number, since 2×22421481² = 1005445620466722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22421411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162406 + ... + 162543.

It is an arithmetic number, because the mean of its divisors is an integer number (3899400).

Almost surely, 2^22421481 is an apocalyptic number.

It is an amenable number.

22421481 is a deficient number, since it is larger than the sum of its proper divisors (8773719).

22421481 is a wasteful number, since it uses less digits than its factorization.

22421481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324975.

The product of its digits is 1024, while the sum is 24.

The square root of 22421481 is about 4735.1326274984. The cubic root of 22421481 is about 281.9820294368.

The spelling of 22421481 in words is "twenty-two million, four hundred twenty-one thousand, four hundred eighty-one".