420611489 has 8 divisors (see below), whose sum is σ = 425430720. Its totient is φ = 415809936.

The previous prime is 420611393. The next prime is 420611491. The reversal of 420611489 is 984116024.

It is a happy number.

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 420611489 - 2¹² = 420607393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420619489) 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, 46772 + ... + 55034.

It is an arithmetic number, because the mean of its divisors is an integer number (53178840).

Almost surely, 2^420611489 is an apocalyptic number.

It is an amenable number.

420611489 is a deficient number, since it is larger than the sum of its proper divisors (4819231).

420611489 is a wasteful number, since it uses less digits than its factorization.

420611489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8839.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 420611489 is about 20508.8149096919. The cubic root of 420611489 is about 749.2505039979.

The spelling of 420611489 in words is "four hundred twenty million, six hundred eleven thousand, four hundred eighty-nine".