22235481 has 12 divisors (see below), whose sum is σ = 32159140. Its totient is φ = 14804640.

The previous prime is 22235471. The next prime is 22235497. The reversal of 22235481 is 18453222.

It can be written as a sum of positive squares in 2 ways, for example, as 16475481 + 5760000 = 4059^2 + 2400^2 .

It is not a de Polignac number, because 22235481 - 2⁶ = 22235417 is a prime.

It is a super-2 number, since 2×22235481² = 988833230602722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22235441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11535 + ... + 13323.

Almost surely, 2^22235481 is an apocalyptic number.

It is an amenable number.

22235481 is a deficient number, since it is larger than the sum of its proper divisors (9923659).

22235481 is a wasteful number, since it uses less digits than its factorization.

22235481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176 (or 3173 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 22235481 is about 4715.4513039581. The cubic root of 22235481 is about 281.2001250820.

The spelling of 22235481 in words is "twenty-two million, two hundred thirty-five thousand, four hundred eighty-one".