1918530546 has 24 divisors (see below), whose sum is σ = 4076051280. Its totient is φ = 601891392.

The previous prime is 1918530541. The next prime is 1918530577. The reversal of 1918530546 is 6450358191.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1918530498 and 1918530507.

It is not an unprimeable number, because it can be changed into a prime (1918530541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 551476 + ... + 554943.

It is an arithmetic number, because the mean of its divisors is an integer number (169835470).

Almost surely, 2^1918530546 is an apocalyptic number.

1918530546 is an abundant number, since it is smaller than the sum of its proper divisors (2157520734).

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

1918530546 is a wasteful number, since it uses less digits than its factorization.

1918530546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106458 (or 1106441 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 1918530546 is about 43801.0336179410. The cubic root of 1918530546 is about 1242.5758426203.

The spelling of 1918530546 in words is "one billion, nine hundred eighteen million, five hundred thirty thousand, five hundred forty-six".