2540277400 has 24 divisors (see below), whose sum is σ = 5906145420. Its totient is φ = 1016110880.

The previous prime is 2540277353. The next prime is 2540277413. The reversal of 2540277400 is 47720452.

2540277400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6350494 + ... + 6350893.

Almost surely, 2^2540277400 is an apocalyptic number.

2540277400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2540277400 is an abundant number, since it is smaller than the sum of its proper divisors (3365868020).

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

2540277400 is a wasteful number, since it uses less digits than its factorization.

2540277400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12701403 (or 12701394 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 2540277400 is about 50401.1646690828. The cubic root of 2540277400 is about 1364.4586581715.

Adding to 2540277400 its reverse (47720452), we get a palindrome (2587997852).

The spelling of 2540277400 in words is "two billion, five hundred forty million, two hundred seventy-seven thousand, four hundred".