1985216 has 14 divisors (see below), whose sum is σ = 3939540. Its totient is φ = 992576.

The previous prime is 1985213. The next prime is 1985219. The reversal of 1985216 is 6125891.

It is an interprime number because it is at equal distance from previous prime (1985213) and next prime (1985219).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (1985213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15446 + ... + 15573.

2^1985216 is an apocalyptic number.

1985216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1985216 is a deficient number, since it is larger than the sum of its proper divisors (1954324).

1985216 is an equidigital number, since it uses as much as digits as its factorization.

1985216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31031 (or 31021 counting only the distinct ones).

The product of its digits is 4320, while the sum is 32.

The square root of 1985216 is about 1408.9769338069. The cubic root of 1985216 is about 125.6808923505.

The spelling of 1985216 in words is "one million, nine hundred eighty-five thousand, two hundred sixteen".