2445420140 has 12 divisors (see below), whose sum is σ = 5135382336. Its totient is φ = 978168048.

The previous prime is 2445420091. The next prime is 2445420161. The reversal of 2445420140 is 410245442.

It is a super-2 number, since 2×2445420140² = 11960159322235239200, which contains 22 as substring.

It is an unprimeable number.

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, 61135484 + ... + 61135523.

It is an arithmetic number, because the mean of its divisors is an integer number (427948528).

Almost surely, 2^2445420140 is an apocalyptic number.

2445420140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2445420140 is an abundant number, since it is smaller than the sum of its proper divisors (2689962196).

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

2445420140 is a wasteful number, since it uses less digits than its factorization.

2445420140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122271016 (or 122271014 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 2445420140 is about 49451.1894700219. The cubic root of 2445420140 is about 1347.2592112117.

Adding to 2445420140 its reverse (410245442), we get a palindrome (2855665582).

The spelling of 2445420140 in words is "two billion, four hundred forty-five million, four hundred twenty thousand, one hundred forty".