234451220 has 24 divisors (see below), whose sum is σ = 493773000. Its totient is φ = 93508992.

The previous prime is 234451219. The next prime is 234451247. The reversal of 234451220 is 22154432.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 116337796 + 118113424 = 10786^2 + 10868^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9815 + ... + 23774.

It is an arithmetic number, because the mean of its divisors is an integer number (20573875).

Almost surely, 2^234451220 is an apocalyptic number.

234451220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234451220 is an abundant number, since it is smaller than the sum of its proper divisors (259321780).

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

234451220 is a wasteful number, since it uses less digits than its factorization.

234451220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33947 (or 33945 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 234451220 is about 15311.8000248175. The cubic root of 234451220 is about 616.6198467822.

The spelling of 234451220 in words is "two hundred thirty-four million, four hundred fifty-one thousand, two hundred twenty".