1816457260 has 12 divisors (see below), whose sum is σ = 3814560288. Its totient is φ = 726582896.

The previous prime is 1816457257. The next prime is 1816457263. The reversal of 1816457260 is 627546181.

It is an interprime number because it is at equal distance from previous prime (1816457257) and next prime (1816457263).

It is not an unprimeable number, because it can be changed into a prime (1816457263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45411412 + ... + 45411451.

It is an arithmetic number, because the mean of its divisors is an integer number (317880024).

Almost surely, 2^1816457260 is an apocalyptic number.

1816457260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1816457260 is an abundant number, since it is smaller than the sum of its proper divisors (1998103028).

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

1816457260 is a wasteful number, since it uses less digits than its factorization.

1816457260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90822872 (or 90822870 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 1816457260 is about 42619.9162364264. The cubic root of 1816457260 is about 1220.1364310383.

The spelling of 1816457260 in words is "one billion, eight hundred sixteen million, four hundred fifty-seven thousand, two hundred sixty".