229517240 has 32 divisors (see below), whose sum is σ = 520367760. Its totient is φ = 91104000.

The previous prime is 229517237. The next prime is 229517243. The reversal of 229517240 is 42715922.

It is an interprime number because it is at equal distance from previous prime (229517237) and next prime (229517243).

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 229517197 and 229517206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229517243) 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, 16661 + ... + 27140.

Almost surely, 2^229517240 is an apocalyptic number.

229517240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229517240 is an abundant number, since it is smaller than the sum of its proper divisors (290850520).

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

229517240 is a wasteful number, since it uses less digits than its factorization.

229517240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43943 (or 43939 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 229517240 is about 15149.8264016457. The cubic root of 229517240 is about 612.2635955647.

The spelling of 229517240 in words is "two hundred twenty-nine million, five hundred seventeen thousand, two hundred forty".