16449290 has 32 divisors (see below), whose sum is σ = 34788096. Its totient is φ = 5520960.

The previous prime is 16449281. The next prime is 16449311. The reversal of 16449290 is 9294461.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 16449290.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4322 + ... + 7181.

It is an arithmetic number, because the mean of its divisors is an integer number (1087128).

Almost surely, 2^16449290 is an apocalyptic number.

16449290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16449290 is an abundant number, since it is smaller than the sum of its proper divisors (18338806).

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

16449290 is a wasteful number, since it uses less digits than its factorization.

16449290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11534.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 16449290 is about 4055.7724295133. The cubic root of 16449290 is about 254.3210955572.

The spelling of 16449290 in words is "sixteen million, four hundred forty-nine thousand, two hundred ninety".