2135224440 has 48 divisors (see below), whose sum is σ = 6939480600. Its totient is φ = 569393088.

The previous prime is 2135224423. The next prime is 2135224459. The reversal of 2135224440 is 444225312.

2135224440 is a `hidden beast` number, since 213 + 5 + 2 + 2 + 4 + 440 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2965230 + ... + 2965949.

Almost surely, 2^2135224440 is an apocalyptic number.

2135224440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2135224440 is an abundant number, since it is smaller than the sum of its proper divisors (4804256160).

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

2135224440 is a wasteful number, since it uses less digits than its factorization.

2135224440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5931196 (or 5931189 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 2135224440 is about 46208.4888305168. The cubic root of 2135224440 is about 1287.6994511757.

Adding to 2135224440 its reverse (444225312), we get a palindrome (2579449752).

The spelling of 2135224440 in words is "two billion, one hundred thirty-five million, two hundred twenty-four thousand, four hundred forty".