2840454456 has 32 divisors (see below), whose sum is σ = 8115584640. Its totient is φ = 811558368.

The previous prime is 2840454451. The next prime is 2840454473. The reversal of 2840454456 is 6544540482.

2840454456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2840454456² = 16136363033220511872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2840454451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8453566 + ... + 8453901.

It is an arithmetic number, because the mean of its divisors is an integer number (253612020).

Almost surely, 2^2840454456 is an apocalyptic number.

It is an amenable number.

2840454456 is an abundant number, since it is smaller than the sum of its proper divisors (5275130184).

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

2840454456 is a wasteful number, since it uses less digits than its factorization.

2840454456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16907483 (or 16907479 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 42.

The square root of 2840454456 is about 53295.9140647761. The cubic root of 2840454456 is about 1416.2152829495.

The spelling of 2840454456 in words is "two billion, eight hundred forty million, four hundred fifty-four thousand, four hundred fifty-six".