70540 has 12 divisors (see below), whose sum is σ = 148176. Its totient is φ = 28208.

The previous prime is 70537. The next prime is 70549. The reversal of 70540 is 4507.

It is a plaindrome in base 9 and base 16.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (70549) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1744 + ... + 1783.

It is an arithmetic number, because the mean of its divisors is an integer number (12348).

2⁷⁰⁵⁴⁰ is an apocalyptic number.

It is an amenable number.

70540 is an abundant number, since it is smaller than the sum of its proper divisors (77636).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74088).

70540 is a wasteful number, since it uses less digits than its factorization.

70540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536 (or 3534 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 70540 is about 265.5936746235. The cubic root of 70540 is about 41.3185575582.

The spelling of 70540 in words is "seventy thousand, five hundred forty".