420214421 has 8 divisors (see below), whose sum is σ = 465931488. Its totient is φ = 375750000.

The previous prime is 420214409. The next prime is 420214471. The reversal of 420214421 is 124412024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420214421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420214393 and 420214402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420214471) 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, 312455 + ... + 313796.

It is an arithmetic number, because the mean of its divisors is an integer number (58241436).

Almost surely, 2^420214421 is an apocalyptic number.

It is an amenable number.

420214421 is a deficient number, since it is larger than the sum of its proper divisors (45717067).

420214421 is a wasteful number, since it uses less digits than its factorization.

420214421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626323.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 420214421 is about 20499.1322011445. The cubic root of 420214421 is about 749.0146592235.

Adding to 420214421 its reverse (124412024), we get a palindrome (544626445).

The spelling of 420214421 in words is "four hundred twenty million, two hundred fourteen thousand, four hundred twenty-one".