8401528980 has 120 divisors (see below), whose sum is σ = 28383356232. Its totient is φ = 2068063488.

The previous prime is 8401528943. The next prime is 8401529011. The reversal of 8401528980 is 898251048.

It is a happy number.

8401528980 is a `hidden beast` number, since 8 + 40 + 1 + 528 + 9 + 80 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 141991056 + 8259537924 = 11916^2 + 90882^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 178407 + ... + 220526.

Almost surely, 2^8401528980 is an apocalyptic number.

It is an amenable number.

8401528980 is an abundant number, since it is smaller than the sum of its proper divisors (19981827252).

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

8401528980 is a wasteful number, since it uses less digits than its factorization.

8401528980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398967 (or 398956 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 8401528980 is about 91659.8547893242. The cubic root of 8401528980 is about 2032.9160434250.

The spelling of 8401528980 in words is "eight billion, four hundred one million, five hundred twenty-eight thousand, nine hundred eighty".