1813090672 has 20 divisors (see below), whose sum is σ = 3633997320. Its totient is φ = 875284928.

The previous prime is 1813090661. The next prime is 1813090691. The reversal of 1813090672 is 2760903181.

It is a super-3 number, since 3×1813090672³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1953298 + ... + 1954225.

It is an arithmetic number, because the mean of its divisors is an integer number (181699866).

Almost surely, 2^1813090672 is an apocalyptic number.

It is an amenable number.

1813090672 is an abundant number, since it is smaller than the sum of its proper divisors (1820906648).

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

1813090672 is a wasteful number, since it uses less digits than its factorization.

1813090672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907560 (or 3907554 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1813090672 is about 42580.4024405594. The cubic root of 1813090672 is about 1219.3821721698.

The spelling of 1813090672 in words is "one billion, eight hundred thirteen million, ninety thousand, six hundred seventy-two".