319289274 has 96 divisors (see below), whose sum is σ = 766112256. Its totient is φ = 95662080.

The previous prime is 319289261. The next prime is 319289279. The reversal of 319289274 is 472982913.

319289274 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (319289279) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 919969 + ... + 920315.

It is an arithmetic number, because the mean of its divisors is an integer number (7980336).

Almost surely, 2^319289274 is an apocalyptic number.

319289274 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 319289274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383056128).

319289274 is an abundant number, since it is smaller than the sum of its proper divisors (446822982).

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

319289274 is a wasteful number, since it uses less digits than its factorization.

319289274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 497 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 319289274 is about 17868.6673817607. The cubic root of 319289274 is about 683.4836181585.

The spelling of 319289274 in words is "three hundred nineteen million, two hundred eighty-nine thousand, two hundred seventy-four".