420039901 has 8 divisors (see below), whose sum is σ = 422682624. Its totient is φ = 417404400.

The previous prime is 420039887. The next prime is 420039913. The reversal of 420039901 is 109930024.

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 420039901 - 2⁷ = 420039773 is a prime.

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 420039901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420039601) 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, 154980 + ... + 157666.

It is an arithmetic number, because the mean of its divisors is an integer number (52835328).

Almost surely, 2^420039901 is an apocalyptic number.

It is an amenable number.

420039901 is a deficient number, since it is larger than the sum of its proper divisors (2642723).

420039901 is a wasteful number, since it uses less digits than its factorization.

420039901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 420039901 is about 20494.8749935197. The cubic root of 420039901 is about 748.9109533278.

Adding to 420039901 its reverse (109930024), we get a palindrome (529969925).

The spelling of 420039901 in words is "four hundred twenty million, thirty-nine thousand, nine hundred one".