2153313240 has 64 divisors (see below), whose sum is σ = 6956863200. Its totient is φ = 530045952.

The previous prime is 2153313157. The next prime is 2153313241. The reversal of 2153313240 is 423133512.

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 2153313240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153313241) 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, 688605 + ... + 691724.

Almost surely, 2^2153313240 is an apocalyptic number.

2153313240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2153313240 is an abundant number, since it is smaller than the sum of its proper divisors (4803549960).

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

2153313240 is a wasteful number, since it uses less digits than its factorization.

2153313240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380356 (or 1380352 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2153313240 is about 46403.8063093966. The cubic root of 2153313240 is about 1291.3255289099.

Adding to 2153313240 its reverse (423133512), we get a palindrome (2576446752).

The spelling of 2153313240 in words is "two billion, one hundred fifty-three million, three hundred thirteen thousand, two hundred forty".