393448046 has 16 divisors (see below), whose sum is σ = 611658000. Its totient is φ = 189587328.

The previous prime is 393448021. The next prime is 393448057. The reversal of 393448046 is 640844393.

It is a junction number, because it is equal to n+sod(n) for n = 393447994 and 393448012.

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, 26630 + ... + 38678.

It is an arithmetic number, because the mean of its divisors is an integer number (38228625).

Almost surely, 2^393448046 is an apocalyptic number.

393448046 is a deficient number, since it is larger than the sum of its proper divisors (218209954).

393448046 is a wasteful number, since it uses less digits than its factorization.

393448046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12643.

The product of its (nonzero) digits is 248832, while the sum is 41.

The square root of 393448046 is about 19835.5248481103. The cubic root of 393448046 is about 732.7611984196.

The spelling of 393448046 in words is "three hundred ninety-three million, four hundred forty-eight thousand, forty-six".