235724481 has 6 divisors (see below), whose sum is σ = 340490930. Its totient is φ = 157149648.

The previous prime is 235724479. The next prime is 235724491. The reversal of 235724481 is 184427532.

It is a happy number.

235724481 is a `hidden beast` number, since 2 + 3 + 572 + 4 + 4 + 81 = 666.

235724481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 158986881 + 76737600 = 12609^2 + 8760^2 .

It is not a de Polignac number, because 235724481 - 2¹ = 235724479 is a prime.

It is a super-2 number, since 2×235724481² = 111132061885438722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235724491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13095796 + ... + 13095813.

Almost surely, 2^235724481 is an apocalyptic number.

It is an amenable number.

235724481 is a deficient number, since it is larger than the sum of its proper divisors (104766449).

235724481 is a wasteful number, since it uses less digits than its factorization.

235724481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26191615 (or 26191612 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 235724481 is about 15353.3214973178. The cubic root of 235724481 is about 617.7340814032.

The spelling of 235724481 in words is "two hundred thirty-five million, seven hundred twenty-four thousand, four hundred eighty-one".