2239428069 has 12 divisors (see below), whose sum is σ = 3235152492. Its totient is φ = 1492756800.

The previous prime is 2239428067. The next prime is 2239428091. The reversal of 2239428069 is 9608249322.

2239428069 is a `hidden beast` number, since 223 + 94 + 280 + 69 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 838797444 + 1400630625 = 28962^2 + 37425^2 .

It is not a de Polignac number, because 2239428069 - 2¹ = 2239428067 is a prime.

It is a super-2 number, since 2×2239428069² = 10030076152450137522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2239428067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100399 + ... + 120659.

It is an arithmetic number, because the mean of its divisors is an integer number (269596041).

Almost surely, 2^2239428069 is an apocalyptic number.

It is an amenable number.

2239428069 is a deficient number, since it is larger than the sum of its proper divisors (995724423).

2239428069 is a wasteful number, since it uses less digits than its factorization.

2239428069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32548 (or 32545 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 2239428069 is about 47322.5957550936. The cubic root of 2239428069 is about 1308.3151560116.

The spelling of 2239428069 in words is "two billion, two hundred thirty-nine million, four hundred twenty-eight thousand, sixty-nine".