16402026 has 16 divisors (see below), whose sum is σ = 33691104. Its totient is φ = 5319504.

The previous prime is 16402019. The next prime is 16402027. The reversal of 16402026 is 62020461.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16401993 and 16402011.

It is not an unprimeable number, because it can be changed into a prime (16402027) 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, 36720 + ... + 37163.

It is an arithmetic number, because the mean of its divisors is an integer number (2105694).

Almost surely, 2^16402026 is an apocalyptic number.

16402026 is an abundant number, since it is smaller than the sum of its proper divisors (17289078).

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

16402026 is a wasteful number, since it uses less digits than its factorization.

16402026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73925.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 16402026 is about 4049.9414810587. The cubic root of 16402026 is about 254.0772803061.

Adding to 16402026 its reverse (62020461), we get a palindrome (78422487).

The spelling of 16402026 in words is "sixteen million, four hundred two thousand, twenty-six".