2543404260 has 24 divisors (see below), whose sum is σ = 7121532096. Its totient is φ = 678241120.

The previous prime is 2543404249. The next prime is 2543404271. The reversal of 2543404260 is 624043452.

It is an interprime number because it is at equal distance from previous prime (2543404249) and next prime (2543404271).

It is a super-2 number, since 2×2543404260² = 12937810459572295200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21194976 + ... + 21195095.

It is an arithmetic number, because the mean of its divisors is an integer number (296730504).

Almost surely, 2^2543404260 is an apocalyptic number.

2543404260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2543404260 is an abundant number, since it is smaller than the sum of its proper divisors (4578127836).

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

2543404260 is a wasteful number, since it uses less digits than its factorization.

2543404260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42390083 (or 42390081 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 2543404260 is about 50432.1748489989. The cubic root of 2543404260 is about 1365.0182718374.

The spelling of 2543404260 in words is "two billion, five hundred forty-three million, four hundred four thousand, two hundred sixty".