4002022401 has 16 divisors (see below), whose sum is σ = 5778252480. Its totient is φ = 2449172160.

The previous prime is 4002022397. The next prime is 4002022403. The reversal of 4002022401 is 1042202004.

It is not a de Polignac number, because 4002022401 - 2² = 4002022397 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4002022403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276411 + ... + 290528.

It is an arithmetic number, because the mean of its divisors is an integer number (361140780).

Almost surely, 2^4002022401 is an apocalyptic number.

It is an amenable number.

4002022401 is a deficient number, since it is larger than the sum of its proper divisors (1776230079).

4002022401 is a wasteful number, since it uses less digits than its factorization.

4002022401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567136.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 4002022401 is about 63261.5396666885. The cubic root of 4002022401 is about 1587.6685370160.

Adding to 4002022401 its reverse (1042202004), we get a palindrome (5044224405).

The spelling of 4002022401 in words is "four billion, two million, twenty-two thousand, four hundred one".