890740 has 12 divisors (see below), whose sum is σ = 1870596. Its totient is φ = 356288.

The previous prime is 890737. The next prime is 890761. The reversal of 890740 is 47098.

It can be written as a sum of positive squares in 2 ways, for example, as 698896 + 191844 = 836^2 + 438^2 .

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 890699 and 890708.

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, 22249 + ... + 22288.

It is an arithmetic number, because the mean of its divisors is an integer number (155883).

2⁸⁹⁰⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

890740 is an abundant number, since it is smaller than the sum of its proper divisors (979856).

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

890740 is a wasteful number, since it uses less digits than its factorization.

890740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44546 (or 44544 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 890740 is about 943.7902309306. The cubic root of 890740 is about 96.2166691809.

The spelling of 890740 in words is "eight hundred ninety thousand, seven hundred forty".