70075840 has 28 divisors (see below), whose sum is σ = 166868856. Its totient is φ = 28030208.

The previous prime is 70075801. The next prime is 70075849. The reversal of 70075840 is 4857007.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70075849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109174 + ... + 109813.

It is an arithmetic number, because the mean of its divisors is an integer number (5959602).

Almost surely, 2^70075840 is an apocalyptic number.

It is an amenable number.

70075840 is an abundant number, since it is smaller than the sum of its proper divisors (96793016).

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

70075840 is a wasteful number, since it uses less digits than its factorization.

70075840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219004 (or 218994 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 70075840 is about 8371.1313452842. The cubic root of 70075840 is about 412.2773135365.

The spelling of 70075840 in words is "seventy million, seventy-five thousand, eight hundred forty".