2540223045 has 32 divisors (see below), whose sum is σ = 4781600640. Its totient is φ = 1275091200.

The previous prime is 2540223041. The next prime is 2540223083. The reversal of 2540223045 is 5403220452.

It is a happy number.

2540223045 is a `hidden beast` number, since 25 + 402 + 230 + 4 + 5 = 666.

2540223045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2540223045 - 2² = 2540223041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540223041) 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, 551131 + ... + 555720.

It is an arithmetic number, because the mean of its divisors is an integer number (149425020).

Almost surely, 2^2540223045 is an apocalyptic number.

It is an amenable number.

2540223045 is a deficient number, since it is larger than the sum of its proper divisors (2241377595).

2540223045 is a wasteful number, since it uses less digits than its factorization.

2540223045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106882 (or 1106876 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 2540223045 is about 50400.6254425478. The cubic root of 2540223045 is about 1364.4489262056.

Adding to 2540223045 its reverse (5403220452), we get a palindrome (7943443497).

The spelling of 2540223045 in words is "two billion, five hundred forty million, two hundred twenty-three thousand, forty-five".