230442757 has 4 divisors (see below), whose sum is σ = 231060940. Its totient is φ = 229824576.

The previous prime is 230442743. The next prime is 230442767. The reversal of 230442757 is 757244032.

230442757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 178516321 + 51926436 = 13361^2 + 7206^2 .

It is a cyclic number.

It is not a de Polignac number, because 230442757 - 2²³ = 222054149 is a prime.

It is a super-2 number, since 2×230442757² = 106207728507522098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230442767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308532 + ... + 309277.

It is an arithmetic number, because the mean of its divisors is an integer number (57765235).

Almost surely, 2^230442757 is an apocalyptic number.

It is an amenable number.

230442757 is a deficient number, since it is larger than the sum of its proper divisors (618183).

230442757 is an equidigital number, since it uses as much as digits as its factorization.

230442757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618182.

The product of its (nonzero) digits is 47040, while the sum is 34.

The square root of 230442757 is about 15180.3411358243. The cubic root of 230442757 is about 613.0854661299.

Adding to 230442757 its reverse (757244032), we get a palindrome (987686789).

The spelling of 230442757 in words is "two hundred thirty million, four hundred forty-two thousand, seven hundred fifty-seven".