23402442 has 16 divisors (see below), whose sum is σ = 53491392. Its totient is φ = 6686400.

The previous prime is 23402437. The next prime is 23402447. The reversal of 23402442 is 24420432.

It is an interprime number because it is at equal distance from previous prime (23402437) and next prime (23402447).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (23402447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278559 + ... + 278642.

It is an arithmetic number, because the mean of its divisors is an integer number (3343212).

Almost surely, 2^23402442 is an apocalyptic number.

23402442 is an abundant number, since it is smaller than the sum of its proper divisors (30088950).

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

23402442 is a wasteful number, since it uses less digits than its factorization.

23402442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557213.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 23402442 is about 4837.6070530790. The cubic root of 23402442 is about 286.0358000404.

Adding to 23402442 its reverse (24420432), we get a palindrome (47822874).

The spelling of 23402442 in words is "twenty-three million, four hundred two thousand, four hundred forty-two".