393022420 has 24 divisors (see below), whose sum is σ = 943254144. Its totient is φ = 134750496.

The previous prime is 393022403. The next prime is 393022447. The reversal of 393022420 is 24220393.

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, 1403512 + ... + 1403791.

It is an arithmetic number, because the mean of its divisors is an integer number (39302256).

Almost surely, 2^393022420 is an apocalyptic number.

It is an amenable number.

393022420 is an abundant number, since it is smaller than the sum of its proper divisors (550231724).

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

393022420 is a wasteful number, since it uses less digits than its factorization.

393022420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807319 (or 2807317 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 393022420 is about 19824.7930632327. The cubic root of 393022420 is about 732.4968731787.

The spelling of 393022420 in words is "three hundred ninety-three million, twenty-two thousand, four hundred twenty".