2400220312 has 24 divisors (see below), whose sum is σ = 5235175260. Its totient is φ = 1028665680.

The previous prime is 2400220297. The next prime is 2400220313. The reversal of 2400220312 is 2130220042.

It is a super-2 number, since 2×2400220312² = 11522115092274754688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400220313) 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 5 ways as a sum of consecutive naturals, for example, 3061114 + ... + 3061897.

Almost surely, 2^2400220312 is an apocalyptic number.

It is an amenable number.

2400220312 is an abundant number, since it is smaller than the sum of its proper divisors (2834954948).

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

2400220312 is a wasteful number, since it uses less digits than its factorization.

2400220312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6123031 (or 6123020 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2400220312 is about 48992.0433539978. The cubic root of 2400220312 is about 1338.9068667197.

Adding to 2400220312 its reverse (2130220042), we get a palindrome (4530440354).

The spelling of 2400220312 in words is "two billion, four hundred million, two hundred twenty thousand, three hundred twelve".