23402016 has 144 divisors (see below), whose sum is σ = 74299680. Its totient is φ = 6927360.

The previous prime is 23402009. The next prime is 23402039. The reversal of 23402016 is 61020432.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 23402016.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262900 + ... + 262988.

It is an arithmetic number, because the mean of its divisors is an integer number (515970).

Almost surely, 2^23402016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23402016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37149840).

23402016 is an abundant number, since it is smaller than the sum of its proper divisors (50897664).

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

23402016 is a wasteful number, since it uses less digits than its factorization.

23402016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 23402016 is about 4837.5630228453. The cubic root of 23402016 is about 286.0340644382.

Adding to 23402016 its reverse (61020432), we get a palindrome (84422448).

It can be divided in two parts, 2340 and 2016, that added together give a square (4356 = 66²).

The spelling of 23402016 in words is "twenty-three million, four hundred two thousand, sixteen".