59840 has 56 divisors (see below), whose sum is σ = 164592. Its totient is φ = 20480.

The previous prime is 59833. The next prime is 59863. The reversal of 59840 is 4895.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3512 + ... + 3528.

2⁵⁹⁸⁴⁰ 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 59840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82296).

59840 is an abundant number, since it is smaller than the sum of its proper divisors (104752).

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

59840 is a wasteful number, since it uses less digits than its factorization.

59840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45 (or 35 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 59840 is about 244.6221576227. The cubic root of 59840 is about 39.1138466100.

Subtracting from 59840 its reverse (4895), we obtain a palindrome (54945).

The spelling of 59840 in words is "fifty-nine thousand, eight hundred forty".