16378680 has 64 divisors (see below), whose sum is σ = 50349600. Its totient is φ = 4259840.

The previous prime is 16378673. The next prime is 16378693. The reversal of 16378680 is 8687361.

It is a super-2 number, since 2×16378680² = 536522317084800, which contains 22 as substring.

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, 3256 + ... + 6584.

Almost surely, 2^16378680 is an apocalyptic number.

16378680 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 16378680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25174800).

16378680 is an abundant number, since it is smaller than the sum of its proper divisors (33970920).

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

16378680 is a wasteful number, since it uses less digits than its factorization.

16378680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384 (or 3380 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 16378680 is about 4047.0581908344. The cubic root of 16378680 is about 253.9566751905.

The spelling of 16378680 in words is "sixteen million, three hundred seventy-eight thousand, six hundred eighty".