8401109472 has 144 divisors (see below), whose sum is σ = 27585728352. Its totient is φ = 2375516160.

The previous prime is 8401109459. The next prime is 8401109489. The reversal of 8401109472 is 2749011048.

8401109472 is a `hidden beast` number, since 84 + 0 + 1 + 109 + 472 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174072 + ... + 217032.

It is an arithmetic number, because the mean of its divisors is an integer number (191567558).

Almost surely, 2^8401109472 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 8401109472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13792864176).

8401109472 is an abundant number, since it is smaller than the sum of its proper divisors (19184618880).

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

8401109472 is a wasteful number, since it uses less digits than its factorization.

8401109472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43081 (or 43070 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 8401109472 is about 91657.5663652489. The cubic root of 8401109472 is about 2032.8822067769.

The spelling of 8401109472 in words is "eight billion, four hundred one million, one hundred nine thousand, four hundred seventy-two".