16230402 has 48 divisors (see below), whose sum is σ = 37104480. Its totient is φ = 5258448.

The previous prime is 16230377. The next prime is 16230407. The reversal of 16230402 is 20403261.

It is a happy number.

16230402 is a `hidden beast` number, since 1 + 623 + 0 + 40 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (16230407) 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 in 23 ways as a sum of consecutive naturals, for example, 151633 + ... + 151739.

It is an arithmetic number, because the mean of its divisors is an integer number (773010).

Almost surely, 2^16230402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16230402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18552240).

16230402 is an abundant number, since it is smaller than the sum of its proper divisors (20874078).

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

16230402 is a wasteful number, since it uses less digits than its factorization.

16230402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 165 counting only the distinct ones).

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

The square root of 16230402 is about 4028.6973080637. The cubic root of 16230402 is about 253.1879848749.

Adding to 16230402 its reverse (20403261), we get a palindrome (36633663).

The spelling of 16230402 in words is "sixteen million, two hundred thirty thousand, four hundred two".