4405508172 has 72 divisors (see below), whose sum is σ = 12109339424. Its totient is φ = 1342365696.

The previous prime is 4405508161. The next prime is 4405508189. The reversal of 4405508172 is 2718055044.

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

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, 2508 + ... + 93900.

Almost surely, 2^4405508172 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 4405508172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6054669712).

4405508172 is an abundant number, since it is smaller than the sum of its proper divisors (7703831252).

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

4405508172 is a wasteful number, since it uses less digits than its factorization.

4405508172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91519 (or 91514 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 4405508172 is about 66374.0022297887. The cubic root of 4405508172 is about 1639.3260382612.

The spelling of 4405508172 in words is "four billion, four hundred five million, five hundred eight thousand, one hundred seventy-two".