1796987140 has 72 divisors (see below), whose sum is σ = 4197017160. Its totient is φ = 645525504.

The previous prime is 1796987083. The next prime is 1796987239. The reversal of 1796987140 is 417896971.

It can be written as a sum of positive squares in 12 ways, for example, as 530196676 + 1266790464 = 23026^2 + 35592^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117876 + ... + 132244.

It is an arithmetic number, because the mean of its divisors is an integer number (58291905).

Almost surely, 2^1796987140 is an apocalyptic number.

1796987140 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 1796987140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2098508580).

1796987140 is an abundant number, since it is smaller than the sum of its proper divisors (2400030020).

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

1796987140 is a wasteful number, since it uses less digits than its factorization.

1796987140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14441 (or 14426 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 52.

The square root of 1796987140 is about 42390.8851051733. The cubic root of 1796987140 is about 1215.7613229399.

The spelling of 1796987140 in words is "one billion, seven hundred ninety-six million, nine hundred eighty-seven thousand, one hundred forty".