22733381 has 8 divisors (see below), whose sum is σ = 24996864. Its totient is φ = 20502720.

The previous prime is 22733371. The next prime is 22733387. The reversal of 22733381 is 18333722.

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 22733381 - 2⁶ = 22733317 is a prime.

It is a super-2 number, since 2×22733381² = 1033613223382322, 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 (22733387) 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, 6740 + ... + 9533.

It is an arithmetic number, because the mean of its divisors is an integer number (3124608).

Almost surely, 2^22733381 is an apocalyptic number.

It is an amenable number.

22733381 is a deficient number, since it is larger than the sum of its proper divisors (2263483).

22733381 is a wasteful number, since it uses less digits than its factorization.

22733381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16411.

The product of its digits is 6048, while the sum is 29.

The square root of 22733381 is about 4767.9535442368. The cubic root of 22733381 is about 283.2835417310.

The spelling of 22733381 in words is "twenty-two million, seven hundred thirty-three thousand, three hundred eighty-one".