1868804320 has 24 divisors (see below), whose sum is σ = 4415050584. Its totient is φ = 747521664.

The previous prime is 1868804281. The next prime is 1868804321. The reversal of 1868804320 is 234088681.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868804321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5839854 + ... + 5840173.

It is an arithmetic number, because the mean of its divisors is an integer number (183960441).

Almost surely, 2^1868804320 is an apocalyptic number.

1868804320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1868804320 is an abundant number, since it is smaller than the sum of its proper divisors (2546246264).

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

1868804320 is a wasteful number, since it uses less digits than its factorization.

1868804320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11680042 (or 11680034 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 1868804320 is about 43229.6694412530. The cubic root of 1868804320 is about 1231.7463285558.

The spelling of 1868804320 in words is "one billion, eight hundred sixty-eight million, eight hundred four thousand, three hundred twenty".