230557840 has 40 divisors (see below), whose sum is σ = 545143680. Its totient is φ = 90658176.

The previous prime is 230557829. The next prime is 230557843. The reversal of 230557840 is 48755032.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 230557796 and 230557805.

It is not an unprimeable number, because it can be changed into a prime (230557843) 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, 19704 + ... + 29143.

It is an arithmetic number, because the mean of its divisors is an integer number (13628592).

Almost surely, 2^230557840 is an apocalyptic number.

230557840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230557840 is an abundant number, since it is smaller than the sum of its proper divisors (314585840).

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

230557840 is a wasteful number, since it uses less digits than its factorization.

230557840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48919 (or 48913 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 230557840 is about 15184.1311901603. The cubic root of 230557840 is about 613.1875073392.

The spelling of 230557840 in words is "two hundred thirty million, five hundred fifty-seven thousand, eight hundred forty".