16531842 has 8 divisors (see below), whose sum is σ = 33063696. Its totient is φ = 5510612.

The previous prime is 16531841. The next prime is 16531849. The reversal of 16531842 is 24813561.

It is a sphenic number, since it is the product of 3 distinct primes.

16531842 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (16531841) 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, 1377648 + ... + 1377659.

It is an arithmetic number, because the mean of its divisors is an integer number (4132962).

Almost surely, 2^16531842 is an apocalyptic number.

16531842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16531842 is a wasteful number, since it uses less digits than its factorization.

16531842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755312.

The product of its digits is 5760, while the sum is 30.

The square root of 16531842 is about 4065.9367924256. The cubic root of 16531842 is about 254.7458290156.

The spelling of 16531842 in words is "sixteen million, five hundred thirty-one thousand, eight hundred forty-two".