16286940 has 48 divisors (see below), whose sum is σ = 50672160. Its totient is φ = 4343040.

The previous prime is 16286929. The next prime is 16286947. The reversal of 16286940 is 4968261.

16286940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 16286895 and 16286904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16286947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14541 + ... + 15620.

It is an arithmetic number, because the mean of its divisors is an integer number (1055670).

Almost surely, 2^16286940 is an apocalyptic number.

16286940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16286940 is an abundant number, since it is smaller than the sum of its proper divisors (34385220).

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

16286940 is a wasteful number, since it uses less digits than its factorization.

16286940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30179 (or 30171 counting only the distinct ones).

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

The square root of 16286940 is about 4035.7081163038. The cubic root of 16286940 is about 253.4816344666.

The spelling of 16286940 in words is "sixteen million, two hundred eighty-six thousand, nine hundred forty".