35840 has 44 divisors (see below), whose sum is σ = 98256. Its totient is φ = 12288.

The previous prime is 35839. The next prime is 35851. The reversal of 35840 is 4853.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5117 + ... + 5123.

2³⁵⁸⁴⁰ 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 35840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49128).

35840 is an abundant number, since it is smaller than the sum of its proper divisors (62416).

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

35840 is an equidigital number, since it uses as much as digits as its factorization.

35840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 35840 is about 189.3145530592. The cubic root of 35840 is about 32.9702823985.

The spelling of 35840 in words is "thirty-five thousand, eight hundred forty".