1845041538 has 32 divisors (see below), whose sum is σ = 3855159360. Its totient is φ = 587921600.

The previous prime is 1845041537. The next prime is 1845041543. The reversal of 1845041538 is 8351405481.

It is a junction number, because it is equal to n+sod(n) for n = 1845041496 and 1845041505.

It is not an unprimeable number, because it can be changed into a prime (1845041537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34920 + ... + 70067.

It is an arithmetic number, because the mean of its divisors is an integer number (120473730).

Almost surely, 2^1845041538 is an apocalyptic number.

1845041538 is an abundant number, since it is smaller than the sum of its proper divisors (2010117822).

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

1845041538 is a wasteful number, since it uses less digits than its factorization.

1845041538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105122.

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 1845041538 is about 42953.9467104014. The cubic root of 1845041538 is about 1226.5032857615.

The spelling of 1845041538 in words is "one billion, eight hundred forty-five million, forty-one thousand, five hundred thirty-eight".