1985058 has 12 divisors (see below), whose sum is σ = 4300998. Its totient is φ = 661680.

The previous prime is 1985057. The next prime is 1985077. The reversal of 1985058 is 8505891.

It can be written as a sum of positive squares in only one way, i.e., 1830609 + 154449 = 1353^2 + 393^2 .

It is not an unprimeable number, because it can be changed into a prime (1985051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55123 + ... + 55158.

2^1985058 is an apocalyptic number.

1985058 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1985058 is an abundant number, since it is smaller than the sum of its proper divisors (2315940).

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

1985058 is a wasteful number, since it uses less digits than its factorization.

1985058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110289 (or 110286 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 1985058 is about 1408.9208636400. The cubic root of 1985058 is about 125.6775580185.

The spelling of 1985058 in words is "one million, nine hundred eighty-five thousand, fifty-eight".