393424344 has 32 divisors (see below), whose sum is σ = 1092846000. Its totient is φ = 131141376.

The previous prime is 393424327. The next prime is 393424351. The reversal of 393424344 is 443424393.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 393424299 and 393424308.

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 7 ways as a sum of consecutive naturals, for example, 910489 + ... + 910920.

Almost surely, 2^393424344 is an apocalyptic number.

It is an amenable number.

393424344 is an abundant number, since it is smaller than the sum of its proper divisors (699421656).

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

393424344 is a wasteful number, since it uses less digits than its factorization.

393424344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821424 (or 1821414 counting only the distinct ones).

The product of its digits is 124416, while the sum is 36.

The square root of 393424344 is about 19834.9273757178. The cubic root of 393424344 is about 732.7464838511.

The spelling of 393424344 in words is "three hundred ninety-three million, four hundred twenty-four thousand, three hundred forty-four".