2153640424 has 64 divisors (see below), whose sum is σ = 4611096000. Its totient is φ = 934778880.

The previous prime is 2153640413. The next prime is 2153640449. The reversal of 2153640424 is 4240463512.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270744 + ... + 278584.

It is an arithmetic number, because the mean of its divisors is an integer number (72048375).

Almost surely, 2^2153640424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2153640424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2305548000).

2153640424 is an abundant number, since it is smaller than the sum of its proper divisors (2457455576).

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

2153640424 is a wasteful number, since it uses less digits than its factorization.

2153640424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8018 (or 8014 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 2153640424 is about 46407.3315759482. The cubic root of 2153640424 is about 1291.3909288475.

The spelling of 2153640424 in words is "two billion, one hundred fifty-three million, six hundred forty thousand, four hundred twenty-four".