16451898 has 16 divisors (see below), whose sum is σ = 32974560. Its totient is φ = 5472176.

The previous prime is 16451867. The next prime is 16451921. The reversal of 16451898 is 89815461.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 361 + ... + 5747.

It is an arithmetic number, because the mean of its divisors is an integer number (2060910).

Almost surely, 2^16451898 is an apocalyptic number.

16451898 is an abundant number, since it is smaller than the sum of its proper divisors (16522662).

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

16451898 is a wasteful number, since it uses less digits than its factorization.

16451898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5901.

The product of its digits is 69120, while the sum is 42.

The square root of 16451898 is about 4056.0939338235. The cubic root of 16451898 is about 254.3345355368.

The spelling of 16451898 in words is "sixteen million, four hundred fifty-one thousand, eight hundred ninety-eight".