890340 has 96 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 201600.

The previous prime is 890333. The next prime is 890371. The reversal of 890340 is 43098.

890340 = T₁₇₆ + T₁₇₇ + ... + T₂₂₀.

It is a self number, because there is not a number n which added to its sum of digits gives 890340.

It is a congruent number.

It is an unprimeable number.

890340 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 31 ways as a sum of consecutive naturals, for example, 12505 + ... + 12575.

It is an arithmetic number, because the mean of its divisors is an integer number (30240).

2⁸⁹⁰³⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 890340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451520).

890340 is an abundant number, since it is smaller than the sum of its proper divisors (2012700).

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

890340 is a wasteful number, since it uses less digits than its factorization.

890340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 890340 is about 943.5782956385. The cubic root of 890340 is about 96.2022645174.

The spelling of 890340 in words is "eight hundred ninety thousand, three hundred forty".