399413383 has 8 divisors (see below), whose sum is σ = 421214720. Its totient is φ = 377690040.

The previous prime is 399413359. The next prime is 399413389. The reversal of 399413383 is 383314993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 399413383 - 2¹⁷ = 399282311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399413389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8823 + ... + 29608.

It is an arithmetic number, because the mean of its divisors is an integer number (52651840).

Almost surely, 2^399413383 is an apocalyptic number.

399413383 is a deficient number, since it is larger than the sum of its proper divisors (21801337).

399413383 is a wasteful number, since it uses less digits than its factorization.

399413383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38997.

The product of its digits is 209952, while the sum is 43.

The square root of 399413383 is about 19985.3291941864. The cubic root of 399413383 is about 736.4459375909.

The spelling of 399413383 in words is "three hundred ninety-nine million, four hundred thirteen thousand, three hundred eighty-three".