420352001 has 8 divisors (see below), whose sum is σ = 425308584. Its totient is φ = 415411200.

The previous prime is 420351949. The next prime is 420352007. The reversal of 420352001 is 100253024.

It can be written as a sum of positive squares in 4 ways, for example, as 369600625 + 50751376 = 19225^2 + 7124^2 .

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-420352001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420352007) 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, 54671 + ... + 61883.

It is an arithmetic number, because the mean of its divisors is an integer number (53163573).

Almost surely, 2^420352001 is an apocalyptic number.

It is an amenable number.

420352001 is a deficient number, since it is larger than the sum of its proper divisors (4956583).

420352001 is a wasteful number, since it uses less digits than its factorization.

420352001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7891.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 420352001 is about 20502.4876783282. The cubic root of 420352001 is about 749.0963938392.

The spelling of 420352001 in words is "four hundred twenty million, three hundred fifty-two thousand, one".