22335381 has 6 divisors (see below), whose sum is σ = 32262230. Its totient is φ = 14890248.

The previous prime is 22335359. The next prime is 22335389. The reversal of 22335381 is 18353322.

It can be written as a sum of positive squares in only one way, i.e., 13727025 + 8608356 = 3705^2 + 2934^2 .

It is not a de Polignac number, because 22335381 - 2¹⁴ = 22318997 is a prime.

It is a super-2 number, since 2×22335381² = 997738488830322, 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 (22335389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1240846 + ... + 1240863.

Almost surely, 2^22335381 is an apocalyptic number.

It is an amenable number.

22335381 is a deficient number, since it is larger than the sum of its proper divisors (9926849).

22335381 is a wasteful number, since it uses less digits than its factorization.

22335381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481715 (or 2481712 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 22335381 is about 4726.0322681928. The cubic root of 22335381 is about 281.6206230928.

The spelling of 22335381 in words is "twenty-two million, three hundred thirty-five thousand, three hundred eighty-one".