16861488 has 120 divisors (see below), whose sum is σ = 51907392. Its totient is φ = 4701312.

The previous prime is 16861483. The next prime is 16861517. The reversal of 16861488 is 88416861.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16861483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157531 + ... + 157637.

Almost surely, 2^16861488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16861488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25953696).

16861488 is an abundant number, since it is smaller than the sum of its proper divisors (35045904).

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

16861488 is a wasteful number, since it uses less digits than its factorization.

16861488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 186 counting only the distinct ones).

The product of its digits is 73728, while the sum is 42.

The square root of 16861488 is about 4106.2742236728. The cubic root of 16861488 is about 256.4279138842.

The spelling of 16861488 in words is "sixteen million, eight hundred sixty-one thousand, four hundred eighty-eight".