420301421 has 8 divisors (see below), whose sum is σ = 447358464. Its totient is φ = 393503680.

The previous prime is 420301417. The next prime is 420301429. The reversal of 420301421 is 124103024.

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 420301421 - 2² = 420301417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420301421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420301429) 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, 61475 + ... + 67968.

It is an arithmetic number, because the mean of its divisors is an integer number (55919808).

Almost surely, 2^420301421 is an apocalyptic number.

It is an amenable number.

420301421 is a deficient number, since it is larger than the sum of its proper divisors (27057043).

420301421 is a wasteful number, since it uses less digits than its factorization.

420301421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129651.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 420301421 is about 20501.2541323696. The cubic root of 420301421 is about 749.0663469457.

Adding to 420301421 its reverse (124103024), we get a palindrome (544404445).

The spelling of 420301421 in words is "four hundred twenty million, three hundred one thousand, four hundred twenty-one".