69540 has 48 divisors (see below), whose sum is σ = 208320. Its totient is φ = 17280.

The previous prime is 69539. The next prime is 69557. The reversal of 69540 is 4596.

It is a self number, because there is not a number n which added to its sum of digits gives 69540.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110 + ... + 1170.

It is an arithmetic number, because the mean of its divisors is an integer number (4340).

2⁶⁹⁵⁴⁰ is an apocalyptic number.

69540 is a gapful number since it is divisible by the number (60) 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 69540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104160).

69540 is an abundant number, since it is smaller than the sum of its proper divisors (138780).

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

69540 is a wasteful number, since it uses less digits than its factorization.

69540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 69540 is about 263.7043799409. The cubic root of 69540 is about 41.1223787528.

The spelling of 69540 in words is "sixty-nine thousand, five hundred forty".