16631142 has 32 divisors (see below), whose sum is σ = 36837504. Its totient is φ = 4963200.

The previous prime is 16631119. The next prime is 16631161. The reversal of 16631142 is 24113661.

It is a zygodrome in base 14.

It is a congruent number.

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, 2542 + ... + 6302.

It is an arithmetic number, because the mean of its divisors is an integer number (1151172).

Almost surely, 2^16631142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16631142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18418752).

16631142 is an abundant number, since it is smaller than the sum of its proper divisors (20206362).

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

16631142 is a wasteful number, since it uses less digits than its factorization.

16631142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844.

The product of its digits is 864, while the sum is 24.

The square root of 16631142 is about 4078.1297183881. The cubic root of 16631142 is about 255.2548624527.

The spelling of 16631142 in words is "sixteen million, six hundred thirty-one thousand, one hundred forty-two".