16486240 has 48 divisors (see below), whose sum is σ = 39245472. Its totient is φ = 6544384.

The previous prime is 16486229. The next prime is 16486241. The reversal of 16486240 is 4268461.

It is a super-2 number, since 2×16486240² = 543592218675200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16486241) 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, 26412 + ... + 27028.

It is an arithmetic number, because the mean of its divisors is an integer number (817614).

Almost surely, 2^16486240 is an apocalyptic number.

16486240 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 16486240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19622736).

16486240 is an abundant number, since it is smaller than the sum of its proper divisors (22759232).

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

16486240 is a wasteful number, since it uses less digits than its factorization.

16486240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 16486240 is about 4060.3251101359. The cubic root of 16486240 is about 254.5113801018.

The spelling of 16486240 in words is "sixteen million, four hundred eighty-six thousand, two hundred forty".