16309380 has 48 divisors (see below), whose sum is σ = 45904320. Its totient is φ = 4326528.

The previous prime is 16309373. The next prime is 16309393. The reversal of 16309380 is 8390361.

16309380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 13147 + ... + 14333.

It is an arithmetic number, because the mean of its divisors is an integer number (956340).

Almost surely, 2^16309380 is an apocalyptic number.

16309380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16309380 is an abundant number, since it is smaller than the sum of its proper divisors (29594940).

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

16309380 is a wasteful number, since it uses less digits than its factorization.

16309380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428 (or 1426 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 16309380 is about 4038.4873405769. The cubic root of 16309380 is about 253.5979959506.

The spelling of 16309380 in words is "sixteen million, three hundred nine thousand, three hundred eighty".