16402013 has 8 divisors (see below), whose sum is σ = 17480448. Its totient is φ = 15354064.

The previous prime is 16402003. The next prime is 16402019. The reversal of 16402013 is 31020461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16402013 - 2⁸ = 16401757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16401982 and 16402000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16402019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6506 + ... + 8667.

It is an arithmetic number, because the mean of its divisors is an integer number (2185056).

Almost surely, 2^16402013 is an apocalyptic number.

It is an amenable number.

16402013 is a deficient number, since it is larger than the sum of its proper divisors (1078435).

16402013 is a wasteful number, since it uses less digits than its factorization.

16402013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15243.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 16402013 is about 4049.9398760969. The cubic root of 16402013 is about 254.0772131801.

Adding to 16402013 its reverse (31020461), we get a palindrome (47422474).

The spelling of 16402013 in words is "sixteen million, four hundred two thousand, thirteen".