1990035 has 16 divisors (see below), whose sum is σ = 3538080. Its totient is φ = 1061280.

The previous prime is 1990033. The next prime is 1990039. The reversal of 1990035 is 5300991.

It is not a de Polignac number, because 1990035 - 2¹ = 1990033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

1990035 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1989990 and 1990008.

It is not an unprimeable number, because it can be changed into a prime (1990031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7236 + ... + 7505.

It is an arithmetic number, because the mean of its divisors is an integer number (221130).

2^1990035 is an apocalyptic number.

1990035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1990035 is a deficient number, since it is larger than the sum of its proper divisors (1548045).

1990035 is a wasteful number, since it uses less digits than its factorization.

1990035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14755 (or 14749 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 1990035 is about 1410.6860033331. The cubic root of 1990035 is about 125.7825046041.

The spelling of 1990035 in words is "one million, nine hundred ninety thousand, thirty-five".