229047940 has 24 divisors (see below), whose sum is σ = 524728512. Its totient is φ = 83290080.

The previous prime is 229047911. The next prime is 229047947. The reversal of 229047940 is 49740922.

It is a self number, because there is not a number n which added to its sum of digits gives 229047940.

It is not an unprimeable number, because it can be changed into a prime (229047947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520344 + ... + 520783.

It is an arithmetic number, because the mean of its divisors is an integer number (21863688).

Almost surely, 2^229047940 is an apocalyptic number.

229047940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229047940 is an abundant number, since it is smaller than the sum of its proper divisors (295680572).

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

229047940 is a wasteful number, since it uses less digits than its factorization.

229047940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041147 (or 1041145 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 229047940 is about 15134.3298497158. The cubic root of 229047940 is about 611.8460069355.

The spelling of 229047940 in words is "two hundred twenty-nine million, forty-seven thousand, nine hundred forty".