16636340 has 24 divisors (see below), whose sum is σ = 39927552. Its totient is φ = 5703840.

The previous prime is 16636327. The next prime is 16636349. The reversal of 16636340 is 4363661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16636349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59276 + ... + 59555.

It is an arithmetic number, because the mean of its divisors is an integer number (1663648).

Almost surely, 2^16636340 is an apocalyptic number.

16636340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16636340 is an abundant number, since it is smaller than the sum of its proper divisors (23291212).

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

16636340 is a wasteful number, since it uses less digits than its factorization.

16636340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118847 (or 118845 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 16636340 is about 4078.7669705439. The cubic root of 16636340 is about 255.2814526606.

The spelling of 16636340 in words is "sixteen million, six hundred thirty-six thousand, three hundred forty".