1814043540 has 48 divisors (see below), whose sum is σ = 5107415040. Its totient is φ = 481069440.

The previous prime is 1814043481. The next prime is 1814043607. The reversal of 1814043540 is 453404181.

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

It is a junction number, because it is equal to n+sod(n) for n = 1814043498 and 1814043507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72660 + ... + 94379.

It is an arithmetic number, because the mean of its divisors is an integer number (106404480).

Almost surely, 2^1814043540 is an apocalyptic number.

1814043540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1814043540 is an abundant number, since it is smaller than the sum of its proper divisors (3293371500).

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

1814043540 is a wasteful number, since it uses less digits than its factorization.

1814043540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167232 (or 167230 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 1814043540 is about 42591.5900149314. The cubic root of 1814043540 is about 1219.5957497884.

The spelling of 1814043540 in words is "one billion, eight hundred fourteen million, forty-three thousand, five hundred forty".