938490 has 64 divisors (see below), whose sum is σ = 2661120. Its totient is φ = 207360.

The previous prime is 938459. The next prime is 938491. The reversal of 938490 is 94839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938491) by changing a digit.

938490 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 31 ways as a sum of consecutive naturals, for example, 8556 + ... + 8664.

It is an arithmetic number, because the mean of its divisors is an integer number (41580).

2⁹³⁸⁴⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 938490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1330560).

938490 is an abundant number, since it is smaller than the sum of its proper divisors (1722630).

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

938490 is a wasteful number, since it uses less digits than its factorization.

938490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 938490 is about 968.7569354590. The cubic root of 938490 is about 97.9061297449.

The spelling of 938490 in words is "nine hundred thirty-eight thousand, four hundred ninety".