421583342 has 8 divisors (see below), whose sum is σ = 640380000. Its totient is φ = 208123344.

The previous prime is 421583339. The next prime is 421583377. The reversal of 421583342 is 243385124.

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

It is a junction number, because it is equal to n+sod(n) for n = 421583299 and 421583308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1333967 + ... + 1334282.

It is an arithmetic number, because the mean of its divisors is an integer number (80047500).

Almost surely, 2^421583342 is an apocalyptic number.

421583342 is a deficient number, since it is larger than the sum of its proper divisors (218796658).

421583342 is a wasteful number, since it uses less digits than its factorization.

421583342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668330.

The product of its digits is 23040, while the sum is 32.

The square root of 421583342 is about 20532.4947826610. The cubic root of 421583342 is about 749.8271257854.

It can be divided in two parts, 4 and 21583342, that multiplied together give a palindrome (86333368).

The spelling of 421583342 in words is "four hundred twenty-one million, five hundred eighty-three thousand, three hundred forty-two".