16493401 has 8 divisors (see below), whose sum is σ = 16892424. Its totient is φ = 16099200.

The previous prime is 16493377. The next prime is 16493413. The reversal of 16493401 is 10439461.

It can be written as a sum of positive squares in 4 ways, for example, as 9759376 + 6734025 = 3124^2 + 2595^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 16493401 - 2¹⁷ = 16362329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16493401.

It is not an unprimeable number, because it can be changed into a prime (16493101) 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, 6255 + ... + 8491.

It is an arithmetic number, because the mean of its divisors is an integer number (2111553).

Almost surely, 2^16493401 is an apocalyptic number.

It is an amenable number.

16493401 is a deficient number, since it is larger than the sum of its proper divisors (399023).

16493401 is a wasteful number, since it uses less digits than its factorization.

16493401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 16493401 is about 4061.2068403370. The cubic root of 16493401 is about 254.5482248114.

It can be divided in two parts, 1649 and 3401, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 16493401 in words is "sixteen million, four hundred ninety-three thousand, four hundred one".