399934270 has 8 divisors (see below), whose sum is σ = 719881704. Its totient is φ = 159973704.

The previous prime is 399934259. The next prime is 399934289. The reversal of 399934270 is 72439993.

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

It is a self number, because there is not a number n which added to its sum of digits gives 399934270.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19996704 + ... + 19996723.

It is an arithmetic number, because the mean of its divisors is an integer number (89985213).

Almost surely, 2^399934270 is an apocalyptic number.

399934270 is a deficient number, since it is larger than the sum of its proper divisors (319947434).

399934270 is a wasteful number, since it uses less digits than its factorization.

399934270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39993434.

The product of its (nonzero) digits is 367416, while the sum is 46.

The square root of 399934270 is about 19998.3566824877. The cubic root of 399934270 is about 736.7659389522.

The spelling of 399934270 in words is "three hundred ninety-nine million, nine hundred thirty-four thousand, two hundred seventy".