2545130440 has 32 divisors (see below), whose sum is σ = 5859722880. Its totient is φ = 994375872.

The previous prime is 2545130431. The next prime is 2545130447. The reversal of 2545130440 is 440315452.

It is a super-2 number, since 2×2545130440² = 12955377913229187200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2545130399 and 2545130408.

It is not an unprimeable number, because it can be changed into a prime (2545130447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 738144 + ... + 741583.

It is an arithmetic number, because the mean of its divisors is an integer number (183116340).

Almost surely, 2^2545130440 is an apocalyptic number.

2545130440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545130440 is an abundant number, since it is smaller than the sum of its proper divisors (3314592440).

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

2545130440 is a wasteful number, since it uses less digits than its factorization.

2545130440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479781 (or 1479777 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2545130440 is about 50449.2858224970. The cubic root of 2545130440 is about 1365.3270095426.

Adding to 2545130440 its reverse (440315452), we get a palindrome (2985445892).

The spelling of 2545130440 in words is "two billion, five hundred forty-five million, one hundred thirty thousand, four hundred forty".