1813035938 has 32 divisors (see below), whose sum is σ = 3161948160. Its totient is φ = 763635600.

The previous prime is 1813035929. The next prime is 1813035947. The reversal of 1813035938 is 8395303181.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1813035929) and next prime (1813035947).

It is a junction number, because it is equal to n+sod(n) for n = 1813035895 and 1813035904.

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, 242963 + ... + 250313.

It is an arithmetic number, because the mean of its divisors is an integer number (98810880).

Almost surely, 2^1813035938 is an apocalyptic number.

1813035938 is a deficient number, since it is larger than the sum of its proper divisors (1348912222).

1813035938 is a wasteful number, since it uses less digits than its factorization.

1813035938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7662.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 1813035938 is about 42579.7597221966. The cubic root of 1813035938 is about 1219.3699017161.

The spelling of 1813035938 in words is "one billion, eight hundred thirteen million, thirty-five thousand, nine hundred thirty-eight".