70940 has 12 divisors (see below), whose sum is σ = 149016. Its totient is φ = 28368.

The previous prime is 70937. The next prime is 70949. The reversal of 70940 is 4907.

70940 = 21² + 22² + ... + 60².

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 3547 = 70940 / (7 + 0 + 9 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70949) 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, 1754 + ... + 1793.

It is an arithmetic number, because the mean of its divisors is an integer number (12418).

2⁷⁰⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

70940 is an abundant number, since it is smaller than the sum of its proper divisors (78076).

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 (74508).

70940 is a wasteful number, since it uses less digits than its factorization.

70940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556 (or 3554 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 70940 is about 266.3456400995. The cubic root of 70940 is about 41.3965099316.

The spelling of 70940 in words is "seventy thousand, nine hundred forty".