16280349 has 8 divisors (see below), whose sum is σ = 21906720. Its totient is φ = 10753776.

The previous prime is 16280323. The next prime is 16280353. The reversal of 16280349 is 94308261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16280349 - 2¹⁹ = 15756061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16280309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24567 + ... + 25220.

It is an arithmetic number, because the mean of its divisors is an integer number (2738340).

Almost surely, 2^16280349 is an apocalyptic number.

It is an amenable number.

16280349 is a deficient number, since it is larger than the sum of its proper divisors (5626371).

16280349 is a wasteful number, since it uses less digits than its factorization.

16280349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49899.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 16280349 is about 4034.8914483540. The cubic root of 16280349 is about 253.4474368647.

The spelling of 16280349 in words is "sixteen million, two hundred eighty thousand, three hundred forty-nine".