16489776 has 40 divisors (see below), whose sum is σ = 43122240. Its totient is φ = 5429056.

The previous prime is 16489771. The next prime is 16489783. The reversal of 16489776 is 67798461.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (16489771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1915 + ... + 6053.

It is an arithmetic number, because the mean of its divisors is an integer number (1078056).

Almost surely, 2^16489776 is an apocalyptic number.

16489776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16489776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21561120).

16489776 is an abundant number, since it is smaller than the sum of its proper divisors (26632464).

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

16489776 is a wasteful number, since it uses less digits than its factorization.

16489776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4233 (or 4227 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 16489776 is about 4060.7605199026. The cubic root of 16489776 is about 254.5295748288.

The spelling of 16489776 in words is "sixteen million, four hundred eighty-nine thousand, seven hundred seventy-six".