229295640 has 64 divisors (see below), whose sum is σ = 786159360. Its totient is φ = 52410240.

The previous prime is 229295621. The next prime is 229295659. The reversal of 229295640 is 46592922.

It is an interprime number because it is at equal distance from previous prime (229295621) and next prime (229295659).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 135646 + ... + 137325.

It is an arithmetic number, because the mean of its divisors is an integer number (12283740).

Almost surely, 2^229295640 is an apocalyptic number.

229295640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229295640 is an abundant number, since it is smaller than the sum of its proper divisors (556863720).

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

229295640 is a wasteful number, since it uses less digits than its factorization.

229295640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272992 (or 272988 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 229295640 is about 15142.5110203031. The cubic root of 229295640 is about 612.0664842976.

The spelling of 229295640 in words is "two hundred twenty-nine million, two hundred ninety-five thousand, six hundred forty".