16878480 has 40 divisors (see below), whose sum is σ = 52324032. Its totient is φ = 4500864.

The previous prime is 16878473. The next prime is 16878497. The reversal of 16878480 is 8487861.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×16878480² = 569766174220800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34924 + ... + 35403.

Almost surely, 2^16878480 is an apocalyptic number.

16878480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16878480 is an abundant number, since it is smaller than the sum of its proper divisors (35445552).

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

16878480 is a wasteful number, since it uses less digits than its factorization.

16878480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70343 (or 70337 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 16878480 is about 4108.3427315646. The cubic root of 16878480 is about 256.5140225416.

The spelling of 16878480 in words is "sixteen million, eight hundred seventy-eight thousand, four hundred eighty".