2849453640 has 320 divisors, whose sum is σ = 11064936960. Its totient is φ = 650004480.

The previous prime is 2849453639. The next prime is 2849453671. The reversal of 2849453640 is 463549482.

2849453640 is a `hidden beast` number, since 28 + 4 + 94 + 536 + 4 + 0 = 666.

2849453640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 603529 + ... + 608231.

It is an arithmetic number, because the mean of its divisors is an integer number (34577928).

Almost surely, 2^2849453640 is an apocalyptic number.

2849453640 is a gapful number since it is divisible by the number (20) 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 2849453640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5532468480).

2849453640 is an abundant number, since it is smaller than the sum of its proper divisors (8215483320).

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

2849453640 is a wasteful number, since it uses less digits than its factorization.

2849453640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754 (or 4741 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The square root of 2849453640 is about 53380.2738846477. The cubic root of 2849453640 is about 1417.7093333241.

The spelling of 2849453640 in words is "two billion, eight hundred forty-nine million, four hundred fifty-three thousand, six hundred forty".