420003001 has 4 divisors (see below), whose sum is σ = 458185104. Its totient is φ = 381820900.

The previous prime is 420002987. The next prime is 420003011. The reversal of 420003001 is 100300024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420003001 - 2²⁷ = 285785273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420003011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19091035 + ... + 19091056.

It is an arithmetic number, because the mean of its divisors is an integer number (114546276).

Almost surely, 2^420003001 is an apocalyptic number.

It is an amenable number.

420003001 is a deficient number, since it is larger than the sum of its proper divisors (38182103).

420003001 is a wasteful number, since it uses less digits than its factorization.

420003001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38182102.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 420003001 is about 20493.9747486914. The cubic root of 420003001 is about 748.8890223768.

Adding to 420003001 its reverse (100300024), we get a palindrome (520303025).

The spelling of 420003001 in words is "four hundred twenty million, three thousand, one".