889940 has 12 divisors (see below), whose sum is σ = 1868916. Its totient is φ = 355968.

The previous prime is 889937. The next prime is 889951. The reversal of 889940 is 49988.

It can be written as a sum of positive squares in 2 ways, for example, as 456976 + 432964 = 676^2 + 658^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 889894 and 889903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22229 + ... + 22268.

It is an arithmetic number, because the mean of its divisors is an integer number (155743).

2⁸⁸⁹⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

889940 is an abundant number, since it is smaller than the sum of its proper divisors (978976).

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

889940 is a wasteful number, since it uses less digits than its factorization.

889940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44506 (or 44504 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 889940 is about 943.3663127333. The cubic root of 889940 is about 96.1878555388.

The spelling of 889940 in words is "eight hundred eighty-nine thousand, nine hundred forty".