16861838 has 16 divisors (see below), whose sum is σ = 28992480. Its totient is φ = 7204896.

The previous prime is 16861837. The next prime is 16861877. The reversal of 16861838 is 83816861.

It is a junction number, because it is equal to n+sod(n) for n = 16861795 and 16861804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16861837) 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, 3608 + ... + 6836.

It is an arithmetic number, because the mean of its divisors is an integer number (1812030).

Almost surely, 2^16861838 is an apocalyptic number.

16861838 is a deficient number, since it is larger than the sum of its proper divisors (12130642).

16861838 is a wasteful number, since it uses less digits than its factorization.

16861838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3611.

The product of its digits is 55296, while the sum is 41.

The square root of 16861838 is about 4106.3168411607. The cubic root of 16861838 is about 256.4296881275.

The spelling of 16861838 in words is "sixteen million, eight hundred sixty-one thousand, eight hundred thirty-eight".