234890220 has 24 divisors (see below), whose sum is σ = 657692784. Its totient is φ = 62637376.

The previous prime is 234890203. The next prime is 234890221. The reversal of 234890220 is 22098432.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (234890221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1957359 + ... + 1957478.

It is an arithmetic number, because the mean of its divisors is an integer number (27403866).

Almost surely, 2^234890220 is an apocalyptic number.

234890220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234890220 is an abundant number, since it is smaller than the sum of its proper divisors (422802564).

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

234890220 is a wasteful number, since it uses less digits than its factorization.

234890220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3914849 (or 3914847 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 234890220 is about 15326.1286696935. The cubic root of 234890220 is about 617.0044716842.

The spelling of 234890220 in words is "two hundred thirty-four million, eight hundred ninety thousand, two hundred twenty".