229890457 has 4 divisors (see below), whose sum is σ = 229953460. Its totient is φ = 229827456.

The previous prime is 229890449. The next prime is 229890469. The reversal of 229890457 is 754098922.

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 208629136 + 21261321 = 14444^2 + 4611^2 .

It is a cyclic number.

It is not a de Polignac number, because 229890457 - 2³ = 229890449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229890487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25668 + ... + 33445.

It is an arithmetic number, because the mean of its divisors is an integer number (57488365).

Almost surely, 2^229890457 is an apocalyptic number.

It is an amenable number.

229890457 is a deficient number, since it is larger than the sum of its proper divisors (63003).

229890457 is an equidigital number, since it uses as much as digits as its factorization.

229890457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63002.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 229890457 is about 15162.1389322219. The cubic root of 229890457 is about 612.5952822475.

The spelling of 229890457 in words is "two hundred twenty-nine million, eight hundred ninety thousand, four hundred fifty-seven".