913147440 has 80 divisors (see below), whose sum is σ = 2838508800. Its totient is φ = 242839296.

The previous prime is 913147409. The next prime is 913147493. The reversal of 913147440 is 44741319.

It is a tau number, because it is divible by the number of its divisors (80).

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, 85941 + ... + 95979.

It is an arithmetic number, because the mean of its divisors is an integer number (35481360).

Almost surely, 2^913147440 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 913147440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1419254400).

913147440 is an abundant number, since it is smaller than the sum of its proper divisors (1925361360).

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

913147440 is a wasteful number, since it uses less digits than its factorization.

913147440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10434 (or 10428 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 913147440 is about 30218.3295368887. The cubic root of 913147440 is about 970.1680510906.

Adding to 913147440 its reverse (44741319), we get a palindrome (957888759).

The spelling of 913147440 in words is "nine hundred thirteen million, one hundred forty-seven thousand, four hundred forty".