235481220 has 108 divisors (see below), whose sum is σ = 773565156. Its totient is φ = 57957120.

The previous prime is 235481179. The next prime is 235481221. The reversal of 235481220 is 22184532.

It can be written as a sum of positive squares in 6 ways, for example, as 79281216 + 156200004 = 8904^2 + 12498^2 .

It is a super-3 number, since 3×235481220³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (235481221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26550 + ... + 34290.

Almost surely, 2^235481220 is an apocalyptic number.

235481220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 235481220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386782578).

235481220 is an abundant number, since it is smaller than the sum of its proper divisors (538083936).

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

235481220 is a wasteful number, since it uses less digits than its factorization.

235481220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7782 (or 7764 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 235481220 is about 15345.3973555591. The cubic root of 235481220 is about 617.5215135626.

The spelling of 235481220 in words is "two hundred thirty-five million, four hundred eighty-one thousand, two hundred twenty".