394532423 has 4 divisors (see below), whose sum is σ = 395801328. Its totient is φ = 393263520.

The previous prime is 394532419. The next prime is 394532441. The reversal of 394532423 is 324235493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324235493 = 521 ⋅622333.

It is a cyclic number.

It is not a de Polignac number, because 394532423 - 2² = 394532419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394532483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633986 + ... + 634607.

It is an arithmetic number, because the mean of its divisors is an integer number (98950332).

Almost surely, 2^394532423 is an apocalyptic number.

394532423 is a deficient number, since it is larger than the sum of its proper divisors (1268905).

394532423 is a wasteful number, since it uses less digits than its factorization.

394532423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268904.

The product of its digits is 77760, while the sum is 35.

The square root of 394532423 is about 19862.8402551095. The cubic root of 394532423 is about 733.4337654231.

The spelling of 394532423 in words is "three hundred ninety-four million, five hundred thirty-two thousand, four hundred twenty-three".