22830381 has 24 divisors (see below), whose sum is σ = 39673920. Its totient is φ = 12358656.

The previous prime is 22830373. The next prime is 22830383. The reversal of 22830381 is 18303822.

22830381 is a `hidden beast` number, since 2 + 283 + 0 + 381 = 666.

It is not a de Polignac number, because 22830381 - 2³ = 22830373 is a prime.

It is a super-2 number, since 2×22830381² = 1042452593210322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22830383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8340 + ... + 10733.

It is an arithmetic number, because the mean of its divisors is an integer number (1653080).

Almost surely, 2^22830381 is an apocalyptic number.

22830381 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22830381 is a deficient number, since it is larger than the sum of its proper divisors (16843539).

22830381 is a wasteful number, since it uses less digits than its factorization.

22830381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19105 (or 19102 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 22830381 is about 4778.1147956072. The cubic root of 22830381 is about 283.6858797976.

The spelling of 22830381 in words is "twenty-two million, eight hundred thirty thousand, three hundred eighty-one".