454435278840 has 192 divisors, whose sum is σ = 1509047055360. Its totient is φ = 118548668160.

The previous prime is 454435278839. The next prime is 454435278853. The reversal of 454435278840 is 48872534454.

454435278840 is a `hidden beast` number, since 4 + 5 + 443 + 52 + 78 + 84 + 0 = 666.

It is a super-2 number, since 2×454435278840² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45865167 + ... + 45875073.

It is an arithmetic number, because the mean of its divisors is an integer number (7859620080).

Almost surely, 2^454435278840 is an apocalyptic number.

454435278840 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 454435278840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754523527680).

454435278840 is an abundant number, since it is smaller than the sum of its proper divisors (1054611776520).

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

454435278840 is a wasteful number, since it uses less digits than its factorization.

454435278840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12682 (or 12675 counting only the distinct ones).

The product of its (nonzero) digits is 17203200, while the sum is 54.

The spelling of 454435278840 in words is "four hundred fifty-four billion, four hundred thirty-five million, two hundred seventy-eight thousand, eight hundred forty".