420032051 has 4 divisors (see below), whose sum is σ = 433581504. Its totient is φ = 406482600.

The previous prime is 420032021. The next prime is 420032057. The reversal of 420032051 is 150230024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420032051 - 2⁶ = 420031987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420032057) 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 3 ways as a sum of consecutive naturals, for example, 6774680 + ... + 6774741.

It is an arithmetic number, because the mean of its divisors is an integer number (108395376).

Almost surely, 2^420032051 is an apocalyptic number.

420032051 is a deficient number, since it is larger than the sum of its proper divisors (13549453).

420032051 is a wasteful number, since it uses less digits than its factorization.

420032051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13549452.

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

The square root of 420032051 is about 20494.6834813324. The cubic root of 420032051 is about 748.9062879078.

Adding to 420032051 its reverse (150230024), we get a palindrome (570262075).

The spelling of 420032051 in words is "four hundred twenty million, thirty-two thousand, fifty-one".