420412321 has 8 divisors (see below), whose sum is σ = 490694400. Its totient is φ = 352686048.

The previous prime is 420412303. The next prime is 420412357. The reversal of 420412321 is 123214024.

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

It is a cyclic number.

It is not a de Polignac number, because 420412321 - 2⁹ = 420411809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420412021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638596 + ... + 639253.

It is an arithmetic number, because the mean of its divisors is an integer number (61336800).

Almost surely, 2^420412321 is an apocalyptic number.

It is an amenable number.

420412321 is a deficient number, since it is larger than the sum of its proper divisors (70282079).

420412321 is a wasteful number, since it uses less digits than its factorization.

420412321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277903.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 420412321 is about 20503.9586665600. The cubic root of 420412321 is about 749.1322235987.

Adding to 420412321 its reverse (123214024), we get a palindrome (543626345).

The spelling of 420412321 in words is "four hundred twenty million, four hundred twelve thousand, three hundred twenty-one".