399385948 has 24 divisors (see below), whose sum is σ = 753263280. Its totient is φ = 184191360.

The previous prime is 399385937. The next prime is 399385997. The reversal of 399385948 is 849583993.

It is a junction number, because it is equal to n+sod(n) for n = 399385892 and 399385901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100968 + ... + 104848.

It is an arithmetic number, because the mean of its divisors is an integer number (31385970).

Almost surely, 2^399385948 is an apocalyptic number.

It is an amenable number.

399385948 is a deficient number, since it is larger than the sum of its proper divisors (353877332).

399385948 is a wasteful number, since it uses less digits than its factorization.

399385948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5877 (or 5875 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 58.

The square root of 399385948 is about 19984.6428039132. The cubic root of 399385948 is about 736.4290754811.

The spelling of 399385948 in words is "three hundred ninety-nine million, three hundred eighty-five thousand, nine hundred forty-eight".