909413648 has 80 divisors (see below), whose sum is σ = 2081866752. Its totient is φ = 379392000.

The previous prime is 909413627. The next prime is 909413671. The reversal of 909413648 is 846314909.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 909413599 and 909413608.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435968 + ... + 438048.

Almost surely, 2^909413648 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 909413648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1040933376).

909413648 is an abundant number, since it is smaller than the sum of its proper divisors (1172453104).

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

909413648 is a wasteful number, since it uses less digits than its factorization.

909413648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304 (or 2298 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 909413648 is about 30156.4860021853. The cubic root of 909413648 is about 968.8439296894.

The spelling of 909413648 in words is "nine hundred nine million, four hundred thirteen thousand, six hundred forty-eight".