1985826 has 24 divisors (see below), whose sum is σ = 4088880. Its totient is φ = 642936.

The previous prime is 1985803. The next prime is 1985849. The reversal of 1985826 is 6285891.

It is an interprime number because it is at equal distance from previous prime (1985803) and next prime (1985849).

Its product of digits (34560) is a multiple of the sum of its prime factors (270).

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11005 + ... + 11183.

It is an arithmetic number, because the mean of its divisors is an integer number (170370).

2^1985826 is an apocalyptic number.

1985826 is an abundant number, since it is smaller than the sum of its proper divisors (2103054).

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

1985826 is a wasteful number, since it uses less digits than its factorization.

1985826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 227 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 1985826 is about 1409.1933863030. The cubic root of 1985826 is about 125.6937637448.

The spelling of 1985826 in words is "one million, nine hundred eighty-five thousand, eight hundred twenty-six".