2542404140 has 12 divisors (see below), whose sum is σ = 5339048736. Its totient is φ = 1016961648.

The previous prime is 2542404133. The next prime is 2542404157. The reversal of 2542404140 is 414042452.

It is a super-2 number, since 2×2542404140² = 12927637622178279200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63560084 + ... + 63560123.

It is an arithmetic number, because the mean of its divisors is an integer number (444920728).

Almost surely, 2^2542404140 is an apocalyptic number.

2542404140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2542404140 is an abundant number, since it is smaller than the sum of its proper divisors (2796644596).

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

2542404140 is a wasteful number, since it uses less digits than its factorization.

2542404140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127120216 (or 127120214 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 2542404140 is about 50422.2583786169. The cubic root of 2542404140 is about 1364.8393304249.

Adding to 2542404140 its reverse (414042452), we get a palindrome (2956446592).

The spelling of 2542404140 in words is "two billion, five hundred forty-two million, four hundred four thousand, one hundred forty".