16006402 has 4 divisors (see below), whose sum is σ = 24009606. Its totient is φ = 8003200.

The previous prime is 16006357. The next prime is 16006421. The reversal of 16006402 is 20460061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20460061 = 17 ⋅1203533.

It can be written as a sum of positive squares in only one way, i.e., 11029041 + 4977361 = 3321^2 + 2231^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16006402.

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 as a sum of consecutive naturals, namely, 4001599 + ... + 4001602.

Almost surely, 2^16006402 is an apocalyptic number.

16006402 is a deficient number, since it is larger than the sum of its proper divisors (8003204).

16006402 is an equidigital number, since it uses as much as digits as its factorization.

16006402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8003203.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 16006402 is about 4000.8001699660. The cubic root of 16006402 is about 252.0178138915.

Adding to 16006402 its reverse (20460061), we get a palindrome (36466463).

The spelling of 16006402 in words is "sixteen million, six thousand, four hundred two".