1958988 has 12 divisors (see below), whose sum is σ = 4571000. Its totient is φ = 652992.

The previous prime is 1958959. The next prime is 1958993. The reversal of 1958988 is 8898591.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81613 + ... + 81636.

2^1958988 is an apocalyptic number.

It is an amenable number.

1958988 is an abundant number, since it is smaller than the sum of its proper divisors (2612012).

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

1958988 is a wasteful number, since it uses less digits than its factorization.

1958988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163256 (or 163254 counting only the distinct ones).

The product of its digits is 207360, while the sum is 48.

The square root of 1958988 is about 1399.6385247627. The cubic root of 1958988 is about 125.1249523869.

The spelling of 1958988 in words is "one million, nine hundred fifty-eight thousand, nine hundred eighty-eight".