2544401240 has 16 divisors (see below), whose sum is σ = 5724902880. Its totient is φ = 1017760480.

The previous prime is 2544401231. The next prime is 2544401267. The reversal of 2544401240 is 421044452.

It is a super-2 number, since 2×2544401240² = 12947955340227075200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31804976 + ... + 31805055.

It is an arithmetic number, because the mean of its divisors is an integer number (357806430).

Almost surely, 2^2544401240 is an apocalyptic number.

2544401240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2544401240 is an abundant number, since it is smaller than the sum of its proper divisors (3180501640).

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

2544401240 is a wasteful number, since it uses less digits than its factorization.

2544401240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63610042 (or 63610038 counting only the distinct ones).

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

The square root of 2544401240 is about 50442.0582450796. The cubic root of 2544401240 is about 1365.1966047591.

Adding to 2544401240 its reverse (421044452), we get a palindrome (2965445692).

The spelling of 2544401240 in words is "two billion, five hundred forty-four million, four hundred one thousand, two hundred forty".