2653455240 has 128 divisors (see below), whose sum is σ = 8860924800. Its totient is φ = 706302720.

The previous prime is 2653455221. The next prime is 2653455247. The reversal of 2653455240 is 425543562.

2653455240 is a `hidden beast` number, since 2 + 65 + 3 + 4 + 552 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2653455195 and 2653455204.

It is not an unprimeable number, because it can be changed into a prime (2653455247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 692530 + ... + 696350.

It is an arithmetic number, because the mean of its divisors is an integer number (69225975).

Almost surely, 2^2653455240 is an apocalyptic number.

2653455240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2653455240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4430462400).

2653455240 is an abundant number, since it is smaller than the sum of its proper divisors (6207469560).

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

2653455240 is a wasteful number, since it uses less digits than its factorization.

2653455240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4484 (or 4474 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The square root of 2653455240 is about 51511.7000301873. The cubic root of 2653455240 is about 1384.4286834589.

The spelling of 2653455240 in words is "two billion, six hundred fifty-three million, four hundred fifty-five thousand, two hundred forty".