393454434 has 8 divisors (see below), whose sum is σ = 786908880. Its totient is φ = 131151476.

The previous prime is 393454433. The next prime is 393454441. The reversal of 393454434 is 434454393.

It is a sphenic number, since it is the product of 3 distinct primes.

393454434 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 393454392 and 393454401.

It is not an unprimeable number, because it can be changed into a prime (393454433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32787864 + ... + 32787875.

It is an arithmetic number, because the mean of its divisors is an integer number (98363610).

Almost surely, 2^393454434 is an apocalyptic number.

393454434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

393454434 is a wasteful number, since it uses less digits than its factorization.

393454434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65575744.

The product of its digits is 311040, while the sum is 39.

The square root of 393454434 is about 19835.6858716809. The cubic root of 393454434 is about 732.7651640878.

The spelling of 393454434 in words is "three hundred ninety-three million, four hundred fifty-four thousand, four hundred thirty-four".