22273851 has 4 divisors (see below), whose sum is σ = 29698472. Its totient is φ = 14849232.

The previous prime is 22273837. The next prime is 22273877. The reversal of 22273851 is 15837222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22273851 - 2¹¹ = 22271803 is a prime.

It is a super-2 number, since 2×22273851² = 992248876740402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22273831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3712306 + ... + 3712311.

It is an arithmetic number, because the mean of its divisors is an integer number (7424618).

Almost surely, 2^22273851 is an apocalyptic number.

22273851 is a deficient number, since it is larger than the sum of its proper divisors (7424621).

22273851 is an equidigital number, since it uses as much as digits as its factorization.

22273851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7424620.

The product of its digits is 6720, while the sum is 30.

The square root of 22273851 is about 4719.5180898054. The cubic root of 22273851 is about 281.3617803581.

The spelling of 22273851 in words is "twenty-two million, two hundred seventy-three thousand, eight hundred fifty-one".