69645740 has 12 divisors (see below), whose sum is σ = 146256096. Its totient is φ = 27858288.

The previous prime is 69645739. The next prime is 69645743. The reversal of 69645740 is 4754696.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (69645743) 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 3 ways as a sum of consecutive naturals, for example, 1741124 + ... + 1741163.

It is an arithmetic number, because the mean of its divisors is an integer number (12188008).

Almost surely, 2^69645740 is an apocalyptic number.

It is an amenable number.

69645740 is an abundant number, since it is smaller than the sum of its proper divisors (76610356).

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

69645740 is a wasteful number, since it uses less digits than its factorization.

69645740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482296 (or 3482294 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 69645740 is about 8345.4023270301. The cubic root of 69645740 is about 411.4321126284.

The spelling of 69645740 in words is "sixty-nine million, six hundred forty-five thousand, seven hundred forty".