16992449 has 4 divisors (see below), whose sum is σ = 17060400. Its totient is φ = 16924500.

The previous prime is 16992431. The next prime is 16992497. The reversal of 16992449 is 94429961.

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 16992449 - 2¹⁶ = 16926913 is a prime.

It is a super-3 number, since 3×16992449³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16992419) 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, 33599 + ... + 34100.

It is an arithmetic number, because the mean of its divisors is an integer number (4265100).

Almost surely, 2^16992449 is an apocalyptic number.

It is an amenable number.

16992449 is a deficient number, since it is larger than the sum of its proper divisors (67951).

16992449 is an equidigital number, since it uses as much as digits as its factorization.

16992449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67950.

The product of its digits is 139968, while the sum is 44.

The square root of 16992449 is about 4122.1898306604. The cubic root of 16992449 is about 257.0900833351.

The spelling of 16992449 in words is "sixteen million, nine hundred ninety-two thousand, four hundred forty-nine".