801813890 has 32 divisors (see below), whose sum is σ = 1498189824. Its totient is φ = 308744640.

The previous prime is 801813877. The next prime is 801813899. The reversal of 801813890 is 98318108.

It is not an unprimeable number, because it can be changed into a prime (801813899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14687 + ... + 42653.

It is an arithmetic number, because the mean of its divisors is an integer number (46818432).

Almost surely, 2^801813890 is an apocalyptic number.

801813890 is a deficient number, since it is larger than the sum of its proper divisors (696375934).

801813890 is a wasteful number, since it uses less digits than its factorization.

801813890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28082.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 801813890 is about 28316.3184400797. The cubic root of 801813890 is about 929.0188480848.

The spelling of 801813890 in words is "eight hundred one million, eight hundred thirteen thousand, eight hundred ninety".