2145454404 has 24 divisors (see below), whose sum is σ = 5009551008. Its totient is φ = 714652800.

The previous prime is 2145454403. The next prime is 2145454433. The reversal of 2145454404 is 4044545412.

It is not an unprimeable number, because it can be changed into a prime (2145454403) 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, 44197 + ... + 79020.

It is an arithmetic number, because the mean of its divisors is an integer number (208731292).

Almost surely, 2^2145454404 is an apocalyptic number.

It is an amenable number.

2145454404 is an abundant number, since it is smaller than the sum of its proper divisors (2864096604).

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

2145454404 is a wasteful number, since it uses less digits than its factorization.

2145454404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124675 (or 124673 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 33.

The square root of 2145454404 is about 46319.0501197941. The cubic root of 2145454404 is about 1289.7526525340.

Adding to 2145454404 its reverse (4044545412), we get a palindrome (6189999816).

The spelling of 2145454404 in words is "two billion, one hundred forty-five million, four hundred fifty-four thousand, four hundred four".