16272438 has 32 divisors (see below), whose sum is σ = 40056576. Its totient is φ = 4291488.

The previous prime is 16272437. The next prime is 16272457. The reversal of 16272438 is 83427261.

16272438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16272399 and 16272408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16272433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14356 + ... + 15447.

It is an arithmetic number, because the mean of its divisors is an integer number (1251768).

Almost surely, 2^16272438 is an apocalyptic number.

16272438 is an abundant number, since it is smaller than the sum of its proper divisors (23784138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16272438 is a wasteful number, since it uses less digits than its factorization.

16272438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29828.

The product of its digits is 16128, while the sum is 33.

The square root of 16272438 is about 4033.9110054636. The cubic root of 16272438 is about 253.4063782133.

Adding to 16272438 its reverse (83427261), we get a palindrome (99699699).

The spelling of 16272438 in words is "sixteen million, two hundred seventy-two thousand, four hundred thirty-eight".