16911340 has 12 divisors (see below), whose sum is σ = 35513856. Its totient is φ = 6764528.

The previous prime is 16911319. The next prime is 16911343. The reversal of 16911340 is 4311961.

It is not an unprimeable number, because it can be changed into a prime (16911343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422764 + ... + 422803.

It is an arithmetic number, because the mean of its divisors is an integer number (2959488).

Almost surely, 2^16911340 is an apocalyptic number.

16911340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16911340 is an abundant number, since it is smaller than the sum of its proper divisors (18602516).

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

16911340 is a wasteful number, since it uses less digits than its factorization.

16911340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845576 (or 845574 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 16911340 is about 4112.3399664911. The cubic root of 16911340 is about 256.6803800698.

The spelling of 16911340 in words is "sixteen million, nine hundred eleven thousand, three hundred forty".