69444445 has 24 divisors (see below), whose sum is σ = 96695424. Its totient is φ = 46899648.

The previous prime is 69444443. The next prime is 69444467. The reversal of 69444445 is 54444496.

It is not a de Polignac number, because 69444445 - 2¹ = 69444443 is a prime.

Its product of digits (276480) is a multiple of the sum of its prime divisors (288).

It is a junction number, because it is equal to n+sod(n) for n = 69444398 and 69444407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69444443) 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 23 ways as a sum of consecutive naturals, for example, 415752 + ... + 415918.

It is an arithmetic number, because the mean of its divisors is an integer number (4028976).

Almost surely, 2^69444445 is an apocalyptic number.

It is an amenable number.

69444445 is a deficient number, since it is larger than the sum of its proper divisors (27250979).

69444445 is a wasteful number, since it uses less digits than its factorization.

69444445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 288 counting only the distinct ones).

The product of its digits is 276480, while the sum is 40.

The square root of 69444445 is about 8333.3333666667. Note that the first 4 decimals coincide. The cubic root of 69444445 is about 411.0353468178.

The spelling of 69444445 in words is "sixty-nine million, four hundred forty-four thousand, four hundred forty-five".