22381963 has 2 divisors, whose sum is σ = 22381964. Its totient is φ = 22381962.

The previous prime is 22381949. The next prime is 22381993. The reversal of 22381963 is 36918322.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22381963 - 2⁹ = 22381451 is a prime.

It is not a weakly prime, because it can be changed into another prime (22381913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11190981 + 11190982.

It is an arithmetic number, because the mean of its divisors is an integer number (11190982).

Almost surely, 2^22381963 is an apocalyptic number.

22381963 is a deficient number, since it is larger than the sum of its proper divisors (1).

22381963 is an equidigital number, since it uses as much as digits as its factorization.

22381963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 22381963 is about 4730.9579368242. The cubic root of 22381963 is about 281.8162669848.

The spelling of 22381963 in words is "twenty-two million, three hundred eighty-one thousand, nine hundred sixty-three".