80087940 has 96 divisors (see below), whose sum is σ = 252376320. Its totient is φ = 21345120.

The previous prime is 80087939. The next prime is 80087977. The reversal of 80087940 is 4978008.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 80087895 and 80087904.

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, 42825 + ... + 44655.

It is an arithmetic number, because the mean of its divisors is an integer number (2628920).

Almost surely, 2^80087940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80087940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126188160).

80087940 is an abundant number, since it is smaller than the sum of its proper divisors (172288380).

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

80087940 is a wasteful number, since it uses less digits than its factorization.

80087940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 80087940 is about 8949.1865552127. The cubic root of 80087940 is about 431.0447643458.

The spelling of 80087940 in words is "eighty million, eighty-seven thousand, nine hundred forty".