4013042421 has 24 divisors (see below), whose sum is σ = 5680069920. Its totient is φ = 2519784864.

The previous prime is 4013042419. The next prime is 4013042437. The reversal of 4013042421 is 1242403104.

It is not a de Polignac number, because 4013042421 - 2¹ = 4013042419 is a prime.

It is a super-2 number, since 2×4013042421² = 32209018945491082482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013042401) 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 23 ways as a sum of consecutive naturals, for example, 176650 + ... + 198068.

It is an arithmetic number, because the mean of its divisors is an integer number (236669580).

Almost surely, 2^4013042421 is an apocalyptic number.

It is an amenable number.

4013042421 is a deficient number, since it is larger than the sum of its proper divisors (1667027499).

4013042421 is a wasteful number, since it uses less digits than its factorization.

4013042421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21633 (or 21614 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 4013042421 is about 63348.5786817668. The cubic root of 4013042421 is about 1589.1244762558.

Adding to 4013042421 its reverse (1242403104), we get a palindrome (5255445525).

The spelling of 4013042421 in words is "four billion, thirteen million, forty-two thousand, four hundred twenty-one".