16415880 has 128 divisors (see below), whose sum is σ = 56246400. Its totient is φ = 3796992.

The previous prime is 16415879. The next prime is 16415891. The reversal of 16415880 is 8851461.

It is a super-2 number, since 2×16415880² = 538962232348800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26211 + ... + 26829.

It is an arithmetic number, because the mean of its divisors is an integer number (439425).

Almost surely, 2^16415880 is an apocalyptic number.

16415880 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 16415880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28123200).

16415880 is an abundant number, since it is smaller than the sum of its proper divisors (39830520).

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

16415880 is a wasteful number, since it uses less digits than its factorization.

16415880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 16415880 is about 4051.6515151232. The cubic root of 16415880 is about 254.1487957813.

The spelling of 16415880 in words is "sixteen million, four hundred fifteen thousand, eight hundred eighty".