423793442 has 32 divisors (see below), whose sum is σ = 711244800. Its totient is φ = 188206848.

The previous prime is 423793427. The next prime is 423793451. The reversal of 423793442 is 244397324.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 423793396 and 423793405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188159 + ... + 190397.

It is an arithmetic number, because the mean of its divisors is an integer number (22226400).

Almost surely, 2^423793442 is an apocalyptic number.

423793442 is a deficient number, since it is larger than the sum of its proper divisors (287451358).

423793442 is a wasteful number, since it uses less digits than its factorization.

423793442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2570.

The product of its digits is 145152, while the sum is 38.

The square root of 423793442 is about 20586.2439993312. The cubic root of 423793442 is about 751.1351356080.

It can be divided in two parts, 4237 and 93442, that added together give a palindrome (97679).

The spelling of 423793442 in words is "four hundred twenty-three million, seven hundred ninety-three thousand, four hundred forty-two".