1799865960 has 64 divisors (see below), whose sum is σ = 5409391680. Its totient is φ = 479093760.

The previous prime is 1799865937. The next prime is 1799865961. The reversal of 1799865960 is 695689971.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 1799865894 and 1799865903.

It is not an unprimeable number, because it can be changed into a prime (1799865961) 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, 54240 + ... + 80880.

It is an arithmetic number, because the mean of its divisors is an integer number (84521745).

Almost surely, 2^1799865960 is an apocalyptic number.

1799865960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1799865960 is an abundant number, since it is smaller than the sum of its proper divisors (3609525720).

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

1799865960 is a wasteful number, since it uses less digits than its factorization.

1799865960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27218 (or 27214 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 60.

The square root of 1799865960 is about 42424.8271652343. The cubic root of 1799865960 is about 1216.4102036112.

The spelling of 1799865960 in words is "one billion, seven hundred ninety-nine million, eight hundred sixty-five thousand, nine hundred sixty".