8945440 has 96 divisors (see below), whose sum is σ = 24796800. Its totient is φ = 3048192.

The previous prime is 8945429. The next prime is 8945441. The reversal of 8945440 is 445498.

It is a junction number, because it is equal to n+sod(n) for n = 8945396 and 8945405.

It is not an unprimeable number, because it can be changed into a prime (8945441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54799 + ... + 54961.

It is an arithmetic number, because the mean of its divisors is an integer number (258300).

Almost surely, 2^8945440 is an apocalyptic number.

8945440 is a gapful number since it is divisible by the number (80) 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 8945440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12398400).

8945440 is an abundant number, since it is smaller than the sum of its proper divisors (15851360).

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

8945440 is a wasteful number, since it uses less digits than its factorization.

8945440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 8945440 is about 2990.8928432828. The cubic root of 8945440 is about 207.5871990404.

The spelling of 8945440 in words is "eight million, nine hundred forty-five thousand, four hundred forty".