16621368 has 32 divisors (see below), whose sum is σ = 41970960. Its totient is φ = 5484800.

The previous prime is 16621361. The next prime is 16621391. The reversal of 16621368 is 86312661.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16621361) 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, 1005 + ... + 5852.

Almost surely, 2^16621368 is an apocalyptic number.

It is an amenable number.

16621368 is an abundant number, since it is smaller than the sum of its proper divisors (25349592).

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

16621368 is a wasteful number, since it uses less digits than its factorization.

16621368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6967 (or 6963 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 16621368 is about 4076.9311988308. The cubic root of 16621368 is about 255.2048488513.

The spelling of 16621368 in words is "sixteen million, six hundred twenty-one thousand, three hundred sixty-eight".