2546403280 has 20 divisors (see below), whose sum is σ = 5920387812. Its totient is φ = 1018561280.

The previous prime is 2546403229. The next prime is 2546403281. The reversal of 2546403280 is 823046452.

2546403280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1893294144 + 653109136 = 43512^2 + 25556^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2546403281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15914941 + ... + 15915100.

Almost surely, 2^2546403280 is an apocalyptic number.

2546403280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2546403280 is an abundant number, since it is smaller than the sum of its proper divisors (3373984532).

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

2546403280 is a wasteful number, since it uses less digits than its factorization.

2546403280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31830054 (or 31830048 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 2546403280 is about 50461.8992904548. The cubic root of 2546403280 is about 1365.5545752476.

The spelling of 2546403280 in words is "two billion, five hundred forty-six million, four hundred three thousand, two hundred eighty".