1813192056 has 192 divisors, whose sum is σ = 5558061600. Its totient is φ = 530095104.

The previous prime is 1813192039. The next prime is 1813192057. The reversal of 1813192056 is 6502913181.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1813192056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813192057) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1818150 + ... + 1819146.

Almost surely, 2^1813192056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1813192056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2779030800).

1813192056 is an abundant number, since it is smaller than the sum of its proper divisors (3744869544).

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

1813192056 is a wasteful number, since it uses less digits than its factorization.

1813192056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118 (or 1111 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1813192056 is about 42581.5929246429. The cubic root of 1813192056 is about 1219.4049001264.

The spelling of 1813192056 in words is "one billion, eight hundred thirteen million, one hundred ninety-two thousand, fifty-six".