319036421 has 16 divisors (see below), whose sum is σ = 352330560. Its totient is φ = 286481280.

The previous prime is 319036411. The next prime is 319036447. The reversal of 319036421 is 124630913.

It is a cyclic number.

It is not a de Polignac number, because 319036421 - 2⁶ = 319036357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319036411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404990 + ... + 405776.

It is an arithmetic number, because the mean of its divisors is an integer number (22020660).

Almost surely, 2^319036421 is an apocalyptic number.

It is an amenable number.

319036421 is a deficient number, since it is larger than the sum of its proper divisors (33294139).

319036421 is a wasteful number, since it uses less digits than its factorization.

319036421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 319036421 is about 17861.5906626482. The cubic root of 319036421 is about 683.3031480354.

The spelling of 319036421 in words is "three hundred nineteen million, thirty-six thousand, four hundred twenty-one".