229578540 has 48 divisors (see below), whose sum is σ = 680635872. Its totient is φ = 57619456.

The previous prime is 229578527. The next prime is 229578553. The reversal of 229578540 is 45875922.

It is an interprime number because it is at equal distance from previous prime (229578527) and next prime (229578553).

It is a junction number, because it is equal to n+sod(n) for n = 229578492 and 229578501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111519 + ... + 113558.

It is an arithmetic number, because the mean of its divisors is an integer number (14179914).

Almost surely, 2^229578540 is an apocalyptic number.

229578540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229578540 is an abundant number, since it is smaller than the sum of its proper divisors (451057332).

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

229578540 is a wasteful number, since it uses less digits than its factorization.

229578540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225106 (or 225104 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 229578540 is about 15151.8493920709. The cubic root of 229578540 is about 612.3180989760.

The spelling of 229578540 in words is "two hundred twenty-nine million, five hundred seventy-eight thousand, five hundred forty".