16378650 has 72 divisors (see below), whose sum is σ = 46614204. Its totient is φ = 4108800.

The previous prime is 16378613. The next prime is 16378673. The reversal of 16378650 is 5687361.

It can be written as a sum of positive squares in 6 ways, for example, as 12680721 + 3697929 = 3561^2 + 1923^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6580 + ... + 8720.

Almost surely, 2^16378650 is an apocalyptic number.

16378650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16378650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23307102).

16378650 is an abundant number, since it is smaller than the sum of its proper divisors (30235554).

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

16378650 is a wasteful number, since it uses less digits than its factorization.

16378650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176 (or 2168 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 16378650 is about 4047.0544844368. The cubic root of 16378650 is about 253.9565201372.

The spelling of 16378650 in words is "sixteen million, three hundred seventy-eight thousand, six hundred fifty".