1801039218 has 16 divisors (see below), whose sum is σ = 3929540256. Its totient is φ = 545769440.

The previous prime is 1801039217. The next prime is 1801039223. The reversal of 1801039218 is 8129301081.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1801039217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13644171 + ... + 13644302.

It is an arithmetic number, because the mean of its divisors is an integer number (245596266).

Almost surely, 2^1801039218 is an apocalyptic number.

1801039218 is an abundant number, since it is smaller than the sum of its proper divisors (2128501038).

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

1801039218 is a wasteful number, since it uses less digits than its factorization.

1801039218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27288489.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 1801039218 is about 42438.6524055607. The cubic root of 1801039218 is about 1216.6744553285.

The spelling of 1801039218 in words is "one billion, eight hundred one million, thirty-nine thousand, two hundred eighteen".