1870780560 has 160 divisors (see below), whose sum is σ = 6531010560. Its totient is φ = 438873600.

The previous prime is 1870780553. The next prime is 1870780577. The reversal of 1870780560 is 650870781.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70411 + ... + 93269.

It is an arithmetic number, because the mean of its divisors is an integer number (40818816).

Almost surely, 2^1870780560 is an apocalyptic number.

1870780560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1870780560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3265505280).

1870780560 is an abundant number, since it is smaller than the sum of its proper divisors (4660230000).

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

1870780560 is a wasteful number, since it uses less digits than its factorization.

1870780560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22917 (or 22911 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 1870780560 is about 43252.5208513908. The cubic root of 1870780560 is about 1232.1803616585.

The spelling of 1870780560 in words is "one billion, eight hundred seventy million, seven hundred eighty thousand, five hundred sixty".