229287299440 has 20 divisors (see below), whose sum is σ = 533092971384. Its totient is φ = 91714919744.

The previous prime is 229287299359. The next prime is 229287299459. The reversal of 229287299440 is 44992782922.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 1433045542 + ... + 1433045701.

Almost surely, 2^229287299440 is an apocalyptic number.

229287299440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229287299440 is an abundant number, since it is smaller than the sum of its proper divisors (303805671944).

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

229287299440 is a wasteful number, since it uses less digits than its factorization.

229287299440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866091256 (or 2866091250 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 229287299440 in words is "two hundred twenty-nine billion, two hundred eighty-seven million, two hundred ninety-nine thousand, four hundred forty".