16049457 has 6 divisors (see below), whose sum is σ = 23182562. Its totient is φ = 10699632.

The previous prime is 16049443. The next prime is 16049477. The reversal of 16049457 is 75494061.

16049457 is a `hidden beast` number, since 1 + 604 + 9 + 45 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12895281 + 3154176 = 3591^2 + 1776^2 .

It is not a de Polignac number, because 16049457 - 2¹⁸ = 15787313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16049417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 891628 + ... + 891645.

Almost surely, 2^16049457 is an apocalyptic number.

It is an amenable number.

16049457 is a deficient number, since it is larger than the sum of its proper divisors (7133105).

16049457 is a wasteful number, since it uses less digits than its factorization.

16049457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783279 (or 1783276 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 16049457 is about 4006.1773550356. The cubic root of 16049457 is about 252.2435759042.

The spelling of 16049457 in words is "sixteen million, forty-nine thousand, four hundred fifty-seven".