1818032460 has 24 divisors (see below), whose sum is σ = 5090491056. Its totient is φ = 484808640.

The previous prime is 1818032453. The next prime is 1818032509. The reversal of 1818032460 is 642308181.

It is a super-2 number, since 2×1818032460² = 6610484051227303200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15150211 + ... + 15150330.

It is an arithmetic number, because the mean of its divisors is an integer number (212103794).

Almost surely, 2^1818032460 is an apocalyptic number.

1818032460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1818032460 is an abundant number, since it is smaller than the sum of its proper divisors (3272458596).

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

1818032460 is a wasteful number, since it uses less digits than its factorization.

1818032460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30300553 (or 30300551 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 1818032460 is about 42638.3918552283. The cubic root of 1818032460 is about 1220.4890228027.

The spelling of 1818032460 in words is "one billion, eight hundred eighteen million, thirty-two thousand, four hundred sixty".