23160402 has 48 divisors (see below), whose sum is σ = 53621568. Its totient is φ = 7207200.

The previous prime is 23160343. The next prime is 23160421. The reversal of 23160402 is 20406132.

It is a happy number.

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

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 17152 + ... + 18452.

It is an arithmetic number, because the mean of its divisors is an integer number (1117116).

Almost surely, 2^23160402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23160402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26810784).

23160402 is an abundant number, since it is smaller than the sum of its proper divisors (30461166).

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

23160402 is a wasteful number, since it uses less digits than its factorization.

23160402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375 (or 1372 counting only the distinct ones).

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

The square root of 23160402 is about 4812.5255323998. The cubic root of 23160402 is about 285.0462713422.

Adding to 23160402 its reverse (20406132), we get a palindrome (43566534).

The spelling of 23160402 in words is "twenty-three million, one hundred sixty thousand, four hundred two".