2154408468 has 48 divisors (see below), whose sum is σ = 5155085376. Its totient is φ = 699869440.

The previous prime is 2154408467. The next prime is 2154408491. The reversal of 2154408468 is 8648044512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154408467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 629530 + ... + 632942.

It is an arithmetic number, because the mean of its divisors is an integer number (107397612).

Almost surely, 2^2154408468 is an apocalyptic number.

It is an amenable number.

2154408468 is an abundant number, since it is smaller than the sum of its proper divisors (3000676908).

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

2154408468 is a wasteful number, since it uses less digits than its factorization.

2154408468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4744 (or 4742 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The square root of 2154408468 is about 46415.6058669926. The cubic root of 2154408468 is about 1291.5444250952.

The spelling of 2154408468 in words is "two billion, one hundred fifty-four million, four hundred eight thousand, four hundred sixty-eight".