459076400640 has 1440 divisors, whose sum is σ = 1925550506880. Its totient is φ = 100370350080.

The previous prime is 459076400639. The next prime is 459076400647. The reversal of 459076400640 is 46004670954.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a super-2 number, since 2×459076400640² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (459076400647) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1920821641 + ... + 1920821879.

It is an arithmetic number, because the mean of its divisors is an integer number (1337187852).

Almost surely, 2^459076400640 is an apocalyptic number.

459076400640 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 459076400640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (962775253440).

459076400640 is an abundant number, since it is smaller than the sum of its proper divisors (1466474106240).

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

459076400640 is a wasteful number, since it uses less digits than its factorization.

459076400640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 459076400640 in words is "four hundred fifty-nine billion, seventy-six million, four hundred thousand, six hundred forty".