890742 has 8 divisors (see below), whose sum is σ = 1781496. Its totient is φ = 296912.

The previous prime is 890737. The next prime is 890761. The reversal of 890742 is 247098.

It is a sphenic number, since it is the product of 3 distinct primes.

890742 is an admirable number.

It is a nialpdrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 890742.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74223 + ... + 74234.

It is an arithmetic number, because the mean of its divisors is an integer number (222687).

2⁸⁹⁰⁷⁴² is an apocalyptic number.

890742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

890742 is a wasteful number, since it uses less digits than its factorization.

890742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148462.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 890742 is about 943.7912904875. The cubic root of 890742 is about 96.2167411934.

The spelling of 890742 in words is "eight hundred ninety thousand, seven hundred forty-two".