70240065 has 32 divisors (see below), whose sum is σ = 128916480. Its totient is φ = 31990464.

The previous prime is 70240057. The next prime is 70240067. The reversal of 70240065 is 56004207.

It is a happy number.

It is not a de Polignac number, because 70240065 - 2³ = 70240057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70240067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31146 + ... + 33324.

It is an arithmetic number, because the mean of its divisors is an integer number (4028640).

Almost surely, 2^70240065 is an apocalyptic number.

It is an amenable number.

70240065 is a deficient number, since it is larger than the sum of its proper divisors (58676415).

70240065 is a wasteful number, since it uses less digits than its factorization.

70240065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 70240065 is about 8380.9346137528. The cubic root of 70240065 is about 412.5991240206.

The spelling of 70240065 in words is "seventy million, two hundred forty thousand, sixty-five".