1838045870 has 32 divisors (see below), whose sum is σ = 3359517120. Its totient is φ = 723905280.

The previous prime is 1838045861. The next prime is 1838045887. The reversal of 1838045870 is 785408381.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 800444 + ... + 802736.

It is an arithmetic number, because the mean of its divisors is an integer number (104984910).

Almost surely, 2^1838045870 is an apocalyptic number.

1838045870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1838045870 is a deficient number, since it is larger than the sum of its proper divisors (1521471250).

1838045870 is a wasteful number, since it uses less digits than its factorization.

1838045870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500.

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 1838045870 is about 42872.4371828801. The cubic root of 1838045870 is about 1224.9511839495.

The spelling of 1838045870 in words is "one billion, eight hundred thirty-eight million, forty-five thousand, eight hundred seventy".