2445669138 has 32 divisors (see below), whose sum is σ = 5374414080. Its totient is φ = 735777360.

The previous prime is 2445669137. The next prime is 2445669167. The reversal of 2445669138 is 8319665442.

It is not an unprimeable number, because it can be changed into a prime (2445669131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124120 + ... + 142467.

It is an arithmetic number, because the mean of its divisors is an integer number (167950440).

Almost surely, 2^2445669138 is an apocalyptic number.

2445669138 is an abundant number, since it is smaller than the sum of its proper divisors (2928744942).

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

2445669138 is a wasteful number, since it uses less digits than its factorization.

2445669138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266742.

The product of its digits is 1244160, while the sum is 48.

The square root of 2445669138 is about 49453.7070197978. The cubic root of 2445669138 is about 1347.3049366146.

The spelling of 2445669138 in words is "two billion, four hundred forty-five million, six hundred sixty-nine thousand, one hundred thirty-eight".