16481280 has 176 divisors, whose sum is σ = 56005920. Its totient is φ = 4128768.

The previous prime is 16481273. The next prime is 16481291. The reversal of 16481280 is 8218461.

16481280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 445422 + ... + 445458.

Almost surely, 2^16481280 is an apocalyptic number.

16481280 is a gapful number since it is divisible by the number (10) 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 16481280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28002960).

16481280 is an abundant number, since it is smaller than the sum of its proper divisors (39524640).

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

16481280 is a wasteful number, since it uses less digits than its factorization.

16481280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 16481280 is about 4059.7142756603. The cubic root of 16481280 is about 254.4858537019.

It can be divided in two parts, 16481 and 280, that added together give a palindrome (16761).

The spelling of 16481280 in words is "sixteen million, four hundred eighty-one thousand, two hundred eighty".