22473481 has 8 divisors (see below), whose sum is σ = 23356928. Its totient is φ = 21600000.

The previous prime is 22473427. The next prime is 22473547. The reversal of 22473481 is 18437422.

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

It is a 5-Lehmer number, since φ(22473481) divides (22473481-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 22473481 - 2⁹ = 22472969 is a prime.

It is a super-2 number, since 2×22473481² = 1010114696514722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22473421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2281 + ... + 7081.

It is an arithmetic number, because the mean of its divisors is an integer number (2919616).

Almost surely, 2^22473481 is an apocalyptic number.

It is an amenable number.

22473481 is a deficient number, since it is larger than the sum of its proper divisors (883447).

22473481 is a wasteful number, since it uses less digits than its factorization.

22473481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4983.

The product of its digits is 10752, while the sum is 31.

The square root of 22473481 is about 4740.6203180597. The cubic root of 22473481 is about 282.1998524635.

The spelling of 22473481 in words is "twenty-two million, four hundred seventy-three thousand, four hundred eighty-one".