16433442 has 60 divisors (see below), whose sum is σ = 39001446. Its totient is φ = 5171040.

The previous prime is 16433429. The next prime is 16433471. The reversal of 16433442 is 24433461.

It can be written as a sum of positive squares in only one way, i.e., 12895281 + 3538161 = 3591^2 + 1881^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 58342 + ... + 58622.

Almost surely, 2^16433442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16433442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19500723).

16433442 is an abundant number, since it is smaller than the sum of its proper divisors (22568004).

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

16433442 is a wasteful number, since it uses less digits than its factorization.

16433442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 305 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 16433442 is about 4053.8182001664. The cubic root of 16433442 is about 254.2393944463.

The spelling of 16433442 in words is "sixteen million, four hundred thirty-three thousand, four hundred forty-two".