1816241480 has 32 divisors (see below), whose sum is σ = 4098151800. Its totient is φ = 724432896.

The previous prime is 1816241477. The next prime is 1816241501. The reversal of 1816241480 is 841426181.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1547478244 + 268763236 = 39338^2 + 16394^2 .

It is a super-2 number, since 2×1816241480² = 6597466227345180800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1816241480.

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, 50195 + ... + 78434.

Almost surely, 2^1816241480 is an apocalyptic number.

1816241480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1816241480 is an abundant number, since it is smaller than the sum of its proper divisors (2281910320).

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

1816241480 is a wasteful number, since it uses less digits than its factorization.

1816241480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128993 (or 128989 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 1816241480 is about 42617.3847156298. The cubic root of 1816241480 is about 1220.0881151084.

The spelling of 1816241480 in words is "one billion, eight hundred sixteen million, two hundred forty-one thousand, four hundred eighty".