80035840 has 60 divisors (see below), whose sum is σ = 192276756. Its totient is φ = 31981568.

The previous prime is 80035817. The next prime is 80035871. The reversal of 80035840 is 4853008.

It can be written as a sum of positive squares in 2 ways, for example, as 55115776 + 24920064 = 7424^2 + 4992^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80035799 and 80035808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81432 + ... + 82408.

Almost surely, 2^80035840 is an apocalyptic number.

80035840 is a gapful number since it is divisible by the number (80) 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 80035840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96138378).

80035840 is an abundant number, since it is smaller than the sum of its proper divisors (112240916).

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

80035840 is an frugal number, since it uses more digits than its factorization.

80035840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 80035840 is about 8946.2752025634. The cubic root of 80035840 is about 430.9512741825.

Adding to 80035840 its reverse (4853008), we get a palindrome (84888848).

The spelling of 80035840 in words is "eighty million, thirty-five thousand, eight hundred forty".