4020332401 has 4 divisors (see below), whose sum is σ = 4020471792. Its totient is φ = 4020193012.

The previous prime is 4020332369. The next prime is 4020332411. The reversal of 4020332401 is 1042330204.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4020332401 - 2⁵ = 4020332369 is a prime.

It is a super-2 number, since 2×4020332401² = 32326145229060849602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4020332411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8551 + ... + 90076.

It is an arithmetic number, because the mean of its divisors is an integer number (1005117948).

Almost surely, 2^4020332401 is an apocalyptic number.

It is an amenable number.

4020332401 is a deficient number, since it is larger than the sum of its proper divisors (139391).

4020332401 is an equidigital number, since it uses as much as digits as its factorization.

4020332401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139390.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 4020332401 is about 63406.0911979283. The cubic root of 4020332401 is about 1590.0861471197.

Adding to 4020332401 its reverse (1042330204), we get a palindrome (5062662605).

The spelling of 4020332401 in words is "four billion, twenty million, three hundred thirty-two thousand, four hundred one".