2542721260 has 24 divisors (see below), whose sum is σ = 5340958560. Its totient is φ = 1016851584.

The previous prime is 2542721257. The next prime is 2542721261. The reversal of 2542721260 is 621272452.

It is not an unprimeable number, because it can be changed into a prime (2542721261) 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, 91977 + ... + 116383.

It is an arithmetic number, because the mean of its divisors is an integer number (222539940).

Almost surely, 2^2542721260 is an apocalyptic number.

2542721260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2542721260 is an abundant number, since it is smaller than the sum of its proper divisors (2798237300).

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

2542721260 is a wasteful number, since it uses less digits than its factorization.

2542721260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29625 (or 29623 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 2542721260 is about 50425.4029235266. The cubic root of 2542721260 is about 1364.8960745970.

The spelling of 2542721260 in words is "two billion, five hundred forty-two million, seven hundred twenty-one thousand, two hundred sixty".