399703334 has 8 divisors (see below), whose sum is σ = 601784640. Its totient is φ = 199108456.

The previous prime is 399703333. The next prime is 399703351. The reversal of 399703334 is 433307993.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 399703291 and 399703300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399703331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370934 + ... + 372009.

It is an arithmetic number, because the mean of its divisors is an integer number (75223080).

Almost surely, 2^399703334 is an apocalyptic number.

399703334 is a deficient number, since it is larger than the sum of its proper divisors (202081306).

399703334 is a wasteful number, since it uses less digits than its factorization.

399703334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743214.

The product of its (nonzero) digits is 183708, while the sum is 41.

The square root of 399703334 is about 19992.5819743224. The cubic root of 399703334 is about 736.6241001955.

The spelling of 399703334 in words is "three hundred ninety-nine million, seven hundred three thousand, three hundred thirty-four".