1845398038 has 16 divisors (see below), whose sum is σ = 3022329024. Its totient is φ = 838098760.

The previous prime is 1845398033. The next prime is 1845398053. The reversal of 1845398038 is 8308935481.

It is a junction number, because it is equal to n+sod(n) for n = 1845397982 and 1845398000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1845398033) 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, 9220 + ... + 61447.

It is an arithmetic number, because the mean of its divisors is an integer number (188895564).

Almost surely, 2^1845398038 is an apocalyptic number.

1845398038 is a deficient number, since it is larger than the sum of its proper divisors (1176930986).

1845398038 is a wasteful number, since it uses less digits than its factorization.

1845398038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71867.

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 1845398038 is about 42958.0963032581. The cubic root of 1845398038 is about 1226.5822759005.

The spelling of 1845398038 in words is "one billion, eight hundred forty-five million, three hundred ninety-eight thousand, thirty-eight".