69442628 has 6 divisors (see below), whose sum is σ = 121524606. Its totient is φ = 34721312.

The previous prime is 69442627. The next prime is 69442631. The reversal of 69442628 is 82624496.

It can be written as a sum of positive squares in only one way, i.e., 66064384 + 3378244 = 8128^2 + 1838^2 .

It is not an unprimeable number, because it can be changed into a prime (69442627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8680325 + ... + 8680332.

It is an arithmetic number, because the mean of its divisors is an integer number (20254101).

Almost surely, 2^69442628 is an apocalyptic number.

It is an amenable number.

69442628 is a deficient number, since it is larger than the sum of its proper divisors (52081978).

69442628 is a wasteful number, since it uses less digits than its factorization.

69442628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17360661 (or 17360659 counting only the distinct ones).

The product of its digits is 165888, while the sum is 41.

The square root of 69442628 is about 8333.2243459540. The cubic root of 69442628 is about 411.0317619007.

The spelling of 69442628 in words is "sixty-nine million, four hundred forty-two thousand, six hundred twenty-eight".