1866016 has 12 divisors (see below), whose sum is σ = 3673782. Its totient is φ = 932992.

The previous prime is 1866001. The next prime is 1866019. The reversal of 1866016 is 6106681.

It can be written as a sum of positive squares in only one way, i.e., 1430416 + 435600 = 1196^2 + 660^2 .

It is not an unprimeable number, because it can be changed into a prime (1866019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29125 + ... + 29188.

2^1866016 is an apocalyptic number.

1866016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1866016 is a deficient number, since it is larger than the sum of its proper divisors (1807766).

1866016 is an equidigital number, since it uses as much as digits as its factorization.

1866016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58323 (or 58315 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1866016 is about 1366.0219617561. The cubic root of 1866016 is about 123.1133421070.

The spelling of 1866016 in words is "one million, eight hundred sixty-six thousand, sixteen".