4021525344 has 192 divisors, whose sum is σ = 11656286208. Its totient is φ = 1209753600.

The previous prime is 4021525337. The next prime is 4021525349. The reversal of 4021525344 is 4435251204.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021525349) 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 31 ways as a sum of consecutive naturals, for example, 2805652 + ... + 2807084.

It is an arithmetic number, because the mean of its divisors is an integer number (60709824).

Almost surely, 2^4021525344 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 4021525344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5828143104).

4021525344 is an abundant number, since it is smaller than the sum of its proper divisors (7634760864).

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

4021525344 is a wasteful number, since it uses less digits than its factorization.

4021525344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541 (or 1533 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 4021525344 is about 63415.4976642145. The cubic root of 4021525344 is about 1590.2434056381.

Adding to 4021525344 its reverse (4435251204), we get a palindrome (8456776548).

The spelling of 4021525344 in words is "four billion, twenty-one million, five hundred twenty-five thousand, three hundred forty-four".