319390148 has 72 divisors (see below), whose sum is σ = 725018112. Its totient is φ = 120384000.

The previous prime is 319390147. The next prime is 319390157. The reversal of 319390148 is 841093913.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (319390147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103508 + ... + 106548.

It is an arithmetic number, because the mean of its divisors is an integer number (10069696).

Almost surely, 2^319390148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 319390148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362509056).

319390148 is an abundant number, since it is smaller than the sum of its proper divisors (405627964).

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

319390148 is a wasteful number, since it uses less digits than its factorization.

319390148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105 (or 3092 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 319390148 is about 17871.4898091905. The cubic root of 319390148 is about 683.5555889100. Note that the first 4 decimals are identical.

The spelling of 319390148 in words is "three hundred nineteen million, three hundred ninety thousand, one hundred forty-eight".