1808864106 has 96 divisors (see below), whose sum is σ = 4487040000. Its totient is φ = 483301728.

The previous prime is 1808864093. The next prime is 1808864119. The reversal of 1808864106 is 6014688081.

It is an interprime number because it is at equal distance from previous prime (1808864093) and next prime (1808864119).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 439245 + ... + 443343.

It is an arithmetic number, because the mean of its divisors is an integer number (46740000).

Almost surely, 2^1808864106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1808864106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2243520000).

1808864106 is an abundant number, since it is smaller than the sum of its proper divisors (2678175894).

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

1808864106 is a wasteful number, since it uses less digits than its factorization.

1808864106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4216 (or 4209 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 1808864106 is about 42530.7430689848. The cubic root of 1808864106 is about 1218.4339185893.

The spelling of 1808864106 in words is "one billion, eight hundred eight million, eight hundred sixty-four thousand, one hundred six".