4521408528 has 160 divisors (see below), whose sum is σ = 14839939072. Its totient is φ = 1153958400.

The previous prime is 4521408509. The next prime is 4521408557. The reversal of 4521408528 is 8258041254.

It is a happy number.

It is a super-2 number, since 2×4521408528² = 40886270154142253568, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 118713 + ... + 152103.

Almost surely, 2^4521408528 is an apocalyptic number.

4521408528 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 4521408528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7419969536).

4521408528 is an abundant number, since it is smaller than the sum of its proper divisors (10318530544).

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

4521408528 is a wasteful number, since it uses less digits than its factorization.

4521408528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33453 (or 33447 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 39.

The square root of 4521408528 is about 67241.4197351603. The cubic root of 4521408528 is about 1653.5776095163.

The spelling of 4521408528 in words is "four billion, five hundred twenty-one million, four hundred eight thousand, five hundred twenty-eight".