1985049 has 12 divisors (see below), whose sum is σ = 3128112. Its totient is φ = 1203000.

The previous prime is 1985047. The next prime is 1985051. The reversal of 1985049 is 9405891.

It is an interprime number because it is at equal distance from previous prime (1985047) and next prime (1985051).

It is not a de Polignac number, because 1985049 - 2¹ = 1985047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1985041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9927 + ... + 10124.

It is an arithmetic number, because the mean of its divisors is an integer number (260676).

2^1985049 is an apocalyptic number.

It is an amenable number.

1985049 is a deficient number, since it is larger than the sum of its proper divisors (1143063).

1985049 is a wasteful number, since it uses less digits than its factorization.

1985049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20068 (or 20065 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1985049 is about 1408.9176697025. The cubic root of 1985049 is about 125.6773680829.

The spelling of 1985049 in words is "one million, nine hundred eighty-five thousand, forty-nine".