319199428 has 12 divisors (see below), whose sum is σ = 582886080. Its totient is φ = 152660552.

The previous prime is 319199417. The next prime is 319199453. The reversal of 319199428 is 824991913.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1734688 + ... + 1734871.

It is an arithmetic number, because the mean of its divisors is an integer number (48573840).

Almost surely, 2^319199428 is an apocalyptic number.

It is an amenable number.

319199428 is a deficient number, since it is larger than the sum of its proper divisors (263686652).

319199428 is a wasteful number, since it uses less digits than its factorization.

319199428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469586 (or 3469584 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 319199428 is about 17866.1531393862. The cubic root of 319199428 is about 683.4195028092.

The spelling of 319199428 in words is "three hundred nineteen million, one hundred ninety-nine thousand, four hundred twenty-eight".