393039948 has 96 divisors (see below), whose sum is σ = 1090252800. Its totient is φ = 107838720.

The previous prime is 393039919. The next prime is 393039971. The reversal of 393039948 is 849930393.

It is a junction number, because it is equal to n+sod(n) for n = 393039897 and 393039906.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 387490 + ... + 388502.

It is an arithmetic number, because the mean of its divisors is an integer number (11356800).

Almost surely, 2^393039948 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 393039948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (545126400).

393039948 is an abundant number, since it is smaller than the sum of its proper divisors (697212852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

393039948 is a wasteful number, since it uses less digits than its factorization.

393039948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207 (or 1205 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 48.

The square root of 393039948 is about 19825.2351310142. The cubic root of 393039948 is about 732.5077623067.

The spelling of 393039948 in words is "three hundred ninety-three million, thirty-nine thousand, nine hundred forty-eight".