16438249 has 16 divisors (see below), whose sum is σ = 18088000. Its totient is φ = 14883264.

The previous prime is 16438243. The next prime is 16438259. The reversal of 16438249 is 94283461.

It is a cyclic number.

It is not a de Polignac number, because 16438249 - 2⁵ = 16438217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (16438243) 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, 46927 + ... + 47275.

It is an arithmetic number, because the mean of its divisors is an integer number (1130500).

Almost surely, 2^16438249 is an apocalyptic number.

16438249 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16438249 is a deficient number, since it is larger than the sum of its proper divisors (1649751).

16438249 is a wasteful number, since it uses less digits than its factorization.

16438249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472.

The product of its digits is 41472, while the sum is 37.

The square root of 16438249 is about 4054.4110546416. The cubic root of 16438249 is about 254.2641814959.

The spelling of 16438249 in words is "sixteen million, four hundred thirty-eight thousand, two hundred forty-nine".