2153014440 has 64 divisors (see below), whose sum is σ = 6463964160. Its totient is φ = 573699840.

The previous prime is 2153014417. The next prime is 2153014441. The reversal of 2153014440 is 444103512.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2153014440.

It is not an unprimeable number, because it can be changed into a prime (2153014441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170422 + ... + 182618.

It is an arithmetic number, because the mean of its divisors is an integer number (100999440).

Almost surely, 2^2153014440 is an apocalyptic number.

2153014440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2153014440 is an abundant number, since it is smaller than the sum of its proper divisors (4310949720).

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

2153014440 is a wasteful number, since it uses less digits than its factorization.

2153014440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13682 (or 13678 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2153014440 is about 46400.5866342226. The cubic root of 2153014440 is about 1291.2657967865.

Adding to 2153014440 its reverse (444103512), we get a palindrome (2597117952).

The spelling of 2153014440 in words is "two billion, one hundred fifty-three million, fourteen thousand, four hundred forty".