16338861 has 64 divisors (see below), whose sum is σ = 31334400. Its totient is φ = 8164800.

The previous prime is 16338857. The next prime is 16338863. The reversal of 16338861 is 16883361.

It is not a de Polignac number, because 16338861 - 2² = 16338857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16338863) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60156 + ... + 60426.

It is an arithmetic number, because the mean of its divisors is an integer number (489600).

Almost surely, 2^16338861 is an apocalyptic number.

16338861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16338861 is a deficient number, since it is larger than the sum of its proper divisors (14995539).

16338861 is a wasteful number, since it uses less digits than its factorization.

16338861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 321 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 16338861 is about 4042.1356978706. The cubic root of 16338861 is about 253.7507060736.

The spelling of 16338861 in words is "sixteen million, three hundred thirty-eight thousand, eight hundred sixty-one".