420590433 has 8 divisors (see below), whose sum is σ = 575943808. Its totient is φ = 272815344.

The previous prime is 420590419. The next prime is 420590453. The reversal of 420590433 is 334095024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420590433 - 2⁹ = 420589921 is a prime.

It is a super-2 number, since 2×420590433² = 353792624662254978, which contains 22 as substring.

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 420590433.

It is not an unprimeable number, because it can be changed into a prime (420590413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1894441 + ... + 1894662.

It is an arithmetic number, because the mean of its divisors is an integer number (71992976).

Almost surely, 2^420590433 is an apocalyptic number.

It is an amenable number.

420590433 is a deficient number, since it is larger than the sum of its proper divisors (155353375).

420590433 is a wasteful number, since it uses less digits than its factorization.

420590433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3789143.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 420590433 is about 20508.3015630256. The cubic root of 420590433 is about 749.2380011837.

The spelling of 420590433 in words is "four hundred twenty million, five hundred ninety thousand, four hundred thirty-three".