22246381 has 8 divisors (see below), whose sum is σ = 22486464. Its totient is φ = 22008000.

The previous prime is 22246373. The next prime is 22246391. The reversal of 22246381 is 18364222.

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

It is a cyclic number.

It is not a de Polignac number, because 22246381 - 2³ = 22246373 is a prime.

It is a super-2 number, since 2×22246381² = 989802935194322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22246331) 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, 65845 + ... + 66181.

It is an arithmetic number, because the mean of its divisors is an integer number (2810808).

Almost surely, 2^22246381 is an apocalyptic number.

It is an amenable number.

22246381 is a deficient number, since it is larger than the sum of its proper divisors (240083).

22246381 is a wasteful number, since it uses less digits than its factorization.

22246381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851.

The product of its digits is 4608, while the sum is 28.

The square root of 22246381 is about 4716.6069371954. The cubic root of 22246381 is about 281.2460663812.

The spelling of 22246381 in words is "twenty-two million, two hundred forty-six thousand, three hundred eighty-one".