319529412 has 18 divisors (see below), whose sum is σ = 807699438. Its totient is φ = 106509792.

The previous prime is 319529411. The next prime is 319529417. The reversal of 319529412 is 214925913.

It can be written as a sum of positive squares in only one way, i.e., 307791936 + 11737476 = 17544^2 + 3426^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 8875817 = 319529412 / (3 + 1 + 9 + 5 + 2 + 9 + 4 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (319529411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4437873 + ... + 4437944.

It is an arithmetic number, because the mean of its divisors is an integer number (44872191).

Almost surely, 2^319529412 is an apocalyptic number.

It is an amenable number.

319529412 is an abundant number, since it is smaller than the sum of its proper divisors (488170026).

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

319529412 is a wasteful number, since it uses less digits than its factorization.

319529412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8875827 (or 8875822 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 319529412 is about 17875.3856461896. The cubic root of 319529412 is about 683.6549249452.

The spelling of 319529412 in words is "three hundred nineteen million, five hundred twenty-nine thousand, four hundred twelve".