16272401 has 4 divisors (see below), whose sum is σ = 16298352. Its totient is φ = 16246452.

The previous prime is 16272343. The next prime is 16272433. The reversal of 16272401 is 10427261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16272401 - 2⁶ = 16272337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (16272461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12011 + ... + 13296.

It is an arithmetic number, because the mean of its divisors is an integer number (4074588).

Almost surely, 2^16272401 is an apocalyptic number.

It is an amenable number.

16272401 is a deficient number, since it is larger than the sum of its proper divisors (25951).

16272401 is an equidigital number, since it uses as much as digits as its factorization.

16272401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25950.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 16272401 is about 4033.9064193409. The cubic root of 16272401 is about 253.4061861494.

Adding to 16272401 its reverse (10427261), we get a palindrome (26699662).

The spelling of 16272401 in words is "sixteen million, two hundred seventy-two thousand, four hundred one".