2543880144 has 120 divisors (see below), whose sum is σ = 7162270752. Its totient is φ = 773418240.

The previous prime is 2543880091. The next prime is 2543880161. The reversal of 2543880144 is 4410883452.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12056199 + ... + 12056409.

Almost surely, 2^2543880144 is an apocalyptic number.

2543880144 is a gapful number since it is divisible by the number (24) 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 2543880144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3581135376).

2543880144 is an abundant number, since it is smaller than the sum of its proper divisors (4618390608).

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

2543880144 is a wasteful number, since it uses less digits than its factorization.

2543880144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The square root of 2543880144 is about 50436.8926877935. The cubic root of 2543880144 is about 1365.1034005048.

The spelling of 2543880144 in words is "two billion, five hundred forty-three million, eight hundred eighty thousand, one hundred forty-four".