16304340 has 48 divisors (see below), whose sum is σ = 49166208. Its totient is φ = 4013184.

The previous prime is 16304317. The next prime is 16304363. The reversal of 16304340 is 4340361.

16304340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16304317) and next prime (16304363).

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, 9672 + ... + 11231.

It is an arithmetic number, because the mean of its divisors is an integer number (1024296).

Almost surely, 2^16304340 is an apocalyptic number.

16304340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16304340 is an abundant number, since it is smaller than the sum of its proper divisors (32861868).

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

16304340 is a wasteful number, since it uses less digits than its factorization.

16304340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20928 (or 20926 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 16304340 is about 4037.8632963487. The cubic root of 16304340 is about 253.5718705842.

The spelling of 16304340 in words is "sixteen million, three hundred four thousand, three hundred forty".