4402342021 has 32 divisors (see below), whose sum is σ = 5722472448. Its totient is φ = 3287269440.

The previous prime is 4402341989. The next prime is 4402342067. The reversal of 4402342021 is 1202432044.

It is a happy number.

It is not a de Polignac number, because 4402342021 - 2⁵ = 4402341989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4402341983 and 4402342001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4402342081) 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 31 ways as a sum of consecutive naturals, for example, 162940 + ... + 188026.

It is an arithmetic number, because the mean of its divisors is an integer number (178827264).

Almost surely, 2^4402342021 is an apocalyptic number.

It is an amenable number.

4402342021 is a deficient number, since it is larger than the sum of its proper divisors (1320130427).

4402342021 is a wasteful number, since it uses less digits than its factorization.

4402342021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25201.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4402342021 is about 66350.1471060916. The cubic root of 4402342021 is about 1638.9332271506.

Adding to 4402342021 its reverse (1202432044), we get a palindrome (5604774065).

The spelling of 4402342021 in words is "four billion, four hundred two million, three hundred forty-two thousand, twenty-one".