16393201 has 12 divisors (see below), whose sum is σ = 18322612. Its totient is φ = 14652000.

The previous prime is 16393199. The next prime is 16393213. The reversal of 16393201 is 10239361.

It can be written as a sum of positive squares in 2 ways, for example, as 4840000 + 11553201 = 2200^2 + 3399^2 .

It is not a de Polignac number, because 16393201 - 2¹ = 16393199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16393231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6271 + ... + 8491.

Almost surely, 2^16393201 is an apocalyptic number.

16393201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16393201 is a deficient number, since it is larger than the sum of its proper divisors (1929411).

16393201 is a wasteful number, since it uses less digits than its factorization.

16393201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304 (or 2293 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 16393201 is about 4048.8518125513. The cubic root of 16393201 is about 254.0317039393.

The spelling of 16393201 in words is "sixteen million, three hundred ninety-three thousand, two hundred one".