890424 has 48 divisors (see below), whose sum is σ = 2457000. Its totient is φ = 291264.

The previous prime is 890419. The next prime is 890429. The reversal of 890424 is 424098.

890424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (890419) and next prime (890429).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890429) by changing a digit.

890424 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5902 + ... + 6050.

2⁸⁹⁰⁴²⁴ 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 890424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1228500).

890424 is an abundant number, since it is smaller than the sum of its proper divisors (1566576).

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

890424 is a wasteful number, since it uses less digits than its factorization.

890424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 890424 is about 943.6228059982. The cubic root of 890424 is about 96.2052898545.

The spelling of 890424 in words is "eight hundred ninety thousand, four hundred twenty-four".