229421790 has 48 divisors (see below), whose sum is σ = 642384288. Its totient is φ = 56472768.

The previous prime is 229421779. The next prime is 229421807. The reversal of 229421790 is 97124922.

229421790 is a `hidden beast` number, since 229 + 421 + 7 + 9 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 96874 + ... + 99213.

It is an arithmetic number, because the mean of its divisors is an integer number (13383006).

Almost surely, 2^229421790 is an apocalyptic number.

229421790 is an abundant number, since it is smaller than the sum of its proper divisors (412962498).

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

229421790 is a wasteful number, since it uses less digits than its factorization.

229421790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196113 (or 196110 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 229421790 is about 15146.6758729432. The cubic root of 229421790 is about 612.1787091842.

The spelling of 229421790 in words is "two hundred twenty-nine million, four hundred twenty-one thousand, seven hundred ninety".