229821450 has 24 divisors (see below), whose sum is σ = 569957568. Its totient is φ = 61285680.

The previous prime is 229821437. The next prime is 229821463. The reversal of 229821450 is 54128922.

It is an interprime number because it is at equal distance from previous prime (229821437) and next prime (229821463).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 765922 + ... + 766221.

It is an arithmetic number, because the mean of its divisors is an integer number (23748232).

Almost surely, 2^229821450 is an apocalyptic number.

229821450 is an abundant number, since it is smaller than the sum of its proper divisors (340136118).

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

229821450 is a wasteful number, since it uses less digits than its factorization.

229821450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532158 (or 1532153 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 229821450 is about 15159.8631260312. The cubic root of 229821450 is about 612.5339811773.

The spelling of 229821450 in words is "two hundred twenty-nine million, eight hundred twenty-one thousand, four hundred fifty".