2540140000 has 240 divisors, whose sum is σ = 6858504576. Its totient is φ = 921600000.

The previous prime is 2540139997. The next prime is 2540140007. The reversal of 2540140000 is 410452.

It is a super-2 number, since 2×2540140000² = 12904622439200000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540140007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10539880 + ... + 10540120.

Almost surely, 2^2540140000 is an apocalyptic number.

2540140000 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 2540140000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3429252288).

2540140000 is an abundant number, since it is smaller than the sum of its proper divisors (4318364576).

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

2540140000 is a wasteful number, since it uses less digits than its factorization.

2540140000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2540140000 is about 50399.8015869110. The cubic root of 2540140000 is about 1364.4340571837.

Adding to 2540140000 its reverse (410452), we get a palindrome (2540550452).

The spelling of 2540140000 in words is "two billion, five hundred forty million, one hundred forty thousand".