23381442 has 24 divisors (see below), whose sum is σ = 57897216. Its totient is φ = 6680376.

The previous prime is 23381441. The next prime is 23381461. The reversal of 23381442 is 24418332.

It is not an unprimeable number, because it can be changed into a prime (23381441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92658 + ... + 92909.

It is an arithmetic number, because the mean of its divisors is an integer number (2412384).

Almost surely, 2^23381442 is an apocalyptic number.

23381442 is an abundant number, since it is smaller than the sum of its proper divisors (34515774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23381442 is a wasteful number, since it uses less digits than its factorization.

23381442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185582 (or 185579 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 23381442 is about 4835.4360713383. The cubic root of 23381442 is about 285.9502170999.

Adding to 23381442 its reverse (24418332), we get a palindrome (47799774).

The spelling of 23381442 in words is "twenty-three million, three hundred eighty-one thousand, four hundred forty-two".