2255340540 has 96 divisors (see below), whose sum is σ = 6512115456. Its totient is φ = 582865920.

The previous prime is 2255340539. The next prime is 2255340557. The reversal of 2255340540 is 450435522.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2255340498 and 2255340507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 334644 + ... + 341316.

It is an arithmetic number, because the mean of its divisors is an integer number (67834536).

Almost surely, 2^2255340540 is an apocalyptic number.

2255340540 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 2255340540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3256057728).

2255340540 is an abundant number, since it is smaller than the sum of its proper divisors (4256774916).

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

2255340540 is a wasteful number, since it uses less digits than its factorization.

2255340540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6859 (or 6857 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 2255340540 is about 47490.4257719385. The cubic root of 2255340540 is about 1311.4066315619.

The spelling of 2255340540 in words is "two billion, two hundred fifty-five million, three hundred forty thousand, five hundred forty".