455784574440 has 256 divisors, whose sum is σ = 1573735806720. Its totient is φ = 104606023680.

The previous prime is 455784574391. The next prime is 455784574451. The reversal of 455784574440 is 44475487554.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2757330 + ... + 2917950.

It is an arithmetic number, because the mean of its divisors is an integer number (6147405495).

Almost surely, 2^455784574440 is an apocalyptic number.

455784574440 is a gapful number since it is divisible by the number (40) 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 455784574440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786867903360).

455784574440 is an abundant number, since it is smaller than the sum of its proper divisors (1117951232280).

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

455784574440 is a wasteful number, since it uses less digits than its factorization.

455784574440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160772 (or 160768 counting only the distinct ones).

The product of its (nonzero) digits is 50176000, while the sum is 57.

The spelling of 455784574440 in words is "four hundred fifty-five billion, seven hundred eighty-four million, five hundred seventy-four thousand, four hundred forty".