938990 has 32 divisors (see below), whose sum is σ = 1886976. Its totient is φ = 334080.

The previous prime is 938989. The next prime is 939007. The reversal of 938990 is 99839.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3914 + ... + 4146.

It is an arithmetic number, because the mean of its divisors is an integer number (58968).

2⁹³⁸⁹⁹⁰ is an apocalyptic number.

938990 is an abundant number, since it is smaller than the sum of its proper divisors (947986).

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

938990 is a wasteful number, since it uses less digits than its factorization.

938990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 938990 is about 969.0149637648. The cubic root of 938990 is about 97.9235138313.

The spelling of 938990 in words is "nine hundred thirty-eight thousand, nine hundred ninety".