16442874 has 48 divisors (see below), whose sum is σ = 41827968. Its totient is φ = 4569696.

The previous prime is 16442869. The next prime is 16442897. The reversal of 16442874 is 47824461.

16442874 is a `hidden beast` number, since 1 + 644 + 2 + 8 + 7 + 4 = 666.

It is a super-3 number, since 3×16442874³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2899 + ... + 6425.

It is an arithmetic number, because the mean of its divisors is an integer number (871416).

Almost surely, 2^16442874 is an apocalyptic number.

16442874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16442874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20913984).

16442874 is an abundant number, since it is smaller than the sum of its proper divisors (25385094).

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

16442874 is a wasteful number, since it uses less digits than its factorization.

16442874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3579 (or 3576 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 16442874 is about 4054.9813809684. The cubic root of 16442874 is about 254.2880255109.

The spelling of 16442874 in words is "sixteen million, four hundred forty-two thousand, eight hundred seventy-four".