938449290 has 16 divisors (see below), whose sum is σ = 2252278368. Its totient is φ = 250253136.

The previous prime is 938449279. The next prime is 938449301. The reversal of 938449290 is 92944839.

It is an interprime number because it is at equal distance from previous prime (938449279) and next prime (938449301).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15640792 + ... + 15640851.

It is an arithmetic number, because the mean of its divisors is an integer number (140767398).

Almost surely, 2^938449290 is an apocalyptic number.

938449290 is an abundant number, since it is smaller than the sum of its proper divisors (1313829078).

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

938449290 is a wasteful number, since it uses less digits than its factorization.

938449290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31281653.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 938449290 is about 30634.1197033634. The cubic root of 938449290 is about 979.0471406076.

The spelling of 938449290 in words is "nine hundred thirty-eight million, four hundred forty-nine thousand, two hundred ninety".