4021442240424 has 128 divisors (see below), whose sum is σ = 11766480000000. Its totient is φ = 1121361905664.

The previous prime is 4021442240303. The next prime is 4021442240441. The reversal of 4021442240424 is 4240422441204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8799927 + ... + 9245625.

It is an arithmetic number, because the mean of its divisors is an integer number (91925625000).

Almost surely, 2^{4021442240424} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4021442240424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5883240000000).

4021442240424 is an abundant number, since it is smaller than the sum of its proper divisors (7745037759576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4021442240424 is a wasteful number, since it uses less digits than its factorization.

4021442240424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447007 (or 447003 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 33.

Adding to 4021442240424 its reverse (4240422441204), we get a palindrome (8261864681628).

The spelling of 4021442240424 in words is "four trillion, twenty-one billion, four hundred forty-two million, two hundred forty thousand, four hundred twenty-four".