42421234004 has 24 divisors (see below), whose sum is σ = 76091866368. Its totient is φ = 20681300160.

The previous prime is 42421234003. The next prime is 42421234021. The reversal of 42421234004 is 40043212424.

It is a happy number.

It is a super-2 number, since 2×42421234004² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42421234003) 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 7 ways as a sum of consecutive naturals, for example, 212477 + ... + 360539.

It is an arithmetic number, because the mean of its divisors is an integer number (3170494432).

Almost surely, 2^42421234004 is an apocalyptic number.

It is an amenable number.

42421234004 is a deficient number, since it is larger than the sum of its proper divisors (33670632364).

42421234004 is a wasteful number, since it uses less digits than its factorization.

42421234004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149855 (or 149853 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 42421234004 its reverse (40043212424), we get a palindrome (82464446428).

The spelling of 42421234004 in words is "forty-two billion, four hundred twenty-one million, two hundred thirty-four thousand, four".