16380000 has 360 divisors, whose sum is σ = 71639568. Its totient is φ = 3456000.

The previous prime is 16379999. The next prime is 16380029. The reversal of 16380000 is 8361.

16380000 = 76³ + 77³ + ... + 99³.

16380000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1259994 + ... + 1260006.

Almost surely, 2^16380000 is an apocalyptic number.

16380000 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 16380000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35819784).

16380000 is an abundant number, since it is smaller than the sum of its proper divisors (55259568).

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

16380000 is a wasteful number, since it uses less digits than its factorization.

16380000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 16380000 is about 4047.2212689696. The cubic root of 16380000 is about 253.9634973481.

Adding to 16380000 its reverse (8361), we get a palindrome (16388361).

The spelling of 16380000 in words is "sixteen million, three hundred eighty thousand".