1813370738 has 24 divisors (see below), whose sum is σ = 2847879216. Its totient is φ = 865917800.

The previous prime is 1813370717. The next prime is 1813370747. The reversal of 1813370738 is 8370733181.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1813370695 and 1813370704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1153493 + ... + 1155063.

It is an arithmetic number, because the mean of its divisors is an integer number (118661634).

Almost surely, 2^1813370738 is an apocalyptic number.

1813370738 is a deficient number, since it is larger than the sum of its proper divisors (1034508478).

1813370738 is a wasteful number, since it uses less digits than its factorization.

1813370738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710 (or 2687 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 1813370738 is about 42583.6909861041. The cubic root of 1813370738 is about 1219.4449544510. Note that the first 3 decimals are identical.

The spelling of 1813370738 in words is "one billion, eight hundred thirteen million, three hundred seventy thousand, seven hundred thirty-eight".