34202440021 has 8 divisors (see below), whose sum is σ = 34919351424. Its totient is φ = 33488179920.

The previous prime is 34202439989. The next prime is 34202440067. The reversal of 34202440021 is 12004420243.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 34202440021 - 2⁵ = 34202439989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34202439974 and 34202440001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34202440621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636745 + ... + 688366.

It is an arithmetic number, because the mean of its divisors is an integer number (4364918928).

Almost surely, 2^34202440021 is an apocalyptic number.

It is an amenable number.

34202440021 is a deficient number, since it is larger than the sum of its proper divisors (716911403).

34202440021 is a wasteful number, since it uses less digits than its factorization.

34202440021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325651.

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

Adding to 34202440021 its reverse (12004420243), we get a palindrome (46206860264).

The spelling of 34202440021 in words is "thirty-four billion, two hundred two million, four hundred forty thousand, twenty-one".