253333280340 has 144 divisors (see below), whose sum is σ = 880179955200. Its totient is φ = 57775656960.

The previous prime is 253333280329. The next prime is 253333280359. The reversal of 253333280340 is 43082333352.

253333280340 is a `hidden beast` number, since 2 + 5 + 3 + 3 + 33 + 280 + 340 = 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 = 253333280295 and 253333280304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 341845 + ... + 789635.

It is an arithmetic number, because the mean of its divisors is an integer number (6112360800).

Almost surely, 2^253333280340 is an apocalyptic number.

253333280340 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 253333280340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440089977600).

253333280340 is an abundant number, since it is smaller than the sum of its proper divisors (626846674860).

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

253333280340 is a wasteful number, since it uses less digits than its factorization.

253333280340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448262 (or 448257 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

The spelling of 253333280340 in words is "two hundred fifty-three billion, three hundred thirty-three million, two hundred eighty thousand, three hundred forty".