1818036241240 has 32 divisors (see below), whose sum is σ = 4305875310000. Its totient is φ = 688940049024.

The previous prime is 1818036241193. The next prime is 1818036241247. The reversal of 1818036241240 is 421426308181.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1818036241193 and 1818036241202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1818036241247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1196075715 + ... + 1196077234.

Almost surely, 2^{1818036241240} is an apocalyptic number.

1818036241240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1818036241240 is an abundant number, since it is smaller than the sum of its proper divisors (2487839068760).

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

1818036241240 is a wasteful number, since it uses less digits than its factorization.

1818036241240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392152979 (or 2392152975 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 1818036241240 in words is "one trillion, eight hundred eighteen billion, thirty-six million, two hundred forty-one thousand, two hundred forty".