1868001084 has 18 divisors (see below), whose sum is σ = 4721891720. Its totient is φ = 622667016.

The previous prime is 1868001077. The next prime is 1868001127. The reversal of 1868001084 is 4801008681.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 51888919 = 1868001084 / (1 + 8 + 6 + 8 + 0 + 0 + 1 + 0 + 8 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25944424 + ... + 25944495.

Almost surely, 2^1868001084 is an apocalyptic number.

It is an amenable number.

1868001084 is an abundant number, since it is smaller than the sum of its proper divisors (2853890636).

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

1868001084 is a wasteful number, since it uses less digits than its factorization.

1868001084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51888929 (or 51888924 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 1868001084 is about 43220.3781103312. The cubic root of 1868001084 is about 1231.5698298240.

The spelling of 1868001084 in words is "one billion, eight hundred sixty-eight million, one thousand, eighty-four".