23390342 has 4 divisors (see below), whose sum is σ = 35085516. Its totient is φ = 11695170.

The previous prime is 23390309. The next prime is 23390347. The reversal of 23390342 is 24309332.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23390347) 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 as a sum of consecutive naturals, namely, 5847584 + ... + 5847587.

It is an arithmetic number, because the mean of its divisors is an integer number (8771379).

Almost surely, 2^23390342 is an apocalyptic number.

23390342 is a deficient number, since it is larger than the sum of its proper divisors (11695174).

23390342 is a wasteful number, since it uses less digits than its factorization.

23390342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11695173.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 23390342 is about 4836.3562730634. The cubic root of 23390342 is about 285.9864942194.

Adding to 23390342 its reverse (24309332), we get a palindrome (47699674).

It can be divided in two parts, 23390 and 342, that added together give a palindrome (23732).

The spelling of 23390342 in words is "twenty-three million, three hundred ninety thousand, three hundred forty-two".