23420342 has 16 divisors (see below), whose sum is σ = 39646800. Its totient is φ = 10278240.

The previous prime is 23420323. The next prime is 23420347. The reversal of 23420342 is 24302432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17717 + ... + 18992.

It is an arithmetic number, because the mean of its divisors is an integer number (2477925).

Almost surely, 2^23420342 is an apocalyptic number.

23420342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23420342 is a deficient number, since it is larger than the sum of its proper divisors (16226458).

23420342 is a wasteful number, since it uses less digits than its factorization.

23420342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36751.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 23420342 is about 4839.4567876984. The cubic root of 23420342 is about 286.1087088985.

Adding to 23420342 its reverse (24302432), we get a palindrome (47722774).

The spelling of 23420342 in words is "twenty-three million, four hundred twenty thousand, three hundred forty-two".