4061021328 has 360 divisors, whose sum is σ = 14537402880. Its totient is φ = 1035141120.

The previous prime is 4061021299. The next prime is 4061021329. The reversal of 4061021328 is 8231201604.

4061021328 is a `hidden beast` number, since 4 + 0 + 610 + 21 + 3 + 28 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4061021329) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5280528 + ... + 5281296.

Almost surely, 2^4061021328 is an apocalyptic number.

4061021328 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4061021328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7268701440).

4061021328 is an abundant number, since it is smaller than the sum of its proper divisors (10476381552).

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

4061021328 is a wasteful number, since it uses less digits than its factorization.

4061021328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 4061021328 is about 63726.1432066934. The cubic root of 4061021328 is about 1595.4324588039.

The spelling of 4061021328 in words is "four billion, sixty-one million, twenty-one thousand, three hundred twenty-eight".