2400223640 has 64 divisors (see below), whose sum is σ = 5823468000. Its totient is φ = 887362560.

The previous prime is 2400223619. The next prime is 2400223643. The reversal of 2400223640 is 463220042.

It is a super-2 number, since 2×2400223640² = 11522147044029699200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400223643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7355 + ... + 69674.

Almost surely, 2^2400223640 is an apocalyptic number.

2400223640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2400223640 is an abundant number, since it is smaller than the sum of its proper divisors (3423244360).

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

2400223640 is a wasteful number, since it uses less digits than its factorization.

2400223640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77100 (or 77096 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2400223640 is about 48992.0773186849. The cubic root of 2400223640 is about 1338.9074855352.

Adding to 2400223640 its reverse (463220042), we get a palindrome (2863443682).

The spelling of 2400223640 in words is "two billion, four hundred million, two hundred twenty-three thousand, six hundred forty".