235231790049 has 27 divisors (see below), whose sum is σ = 341615478009. Its totient is φ = 155978251200.

The previous prime is 235231790021. The next prime is 235231790071. The reversal of 235231790049 is 940097132532.

The square root of 235231790049 is 485007.

It is a perfect power (a square), and thus also a powerful number.

235231790049 is a `hidden beast` number, since 23 + 523 + 17 + 90 + 0 + 4 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5349898449 + 229881891600 = 73143^2 + 479460^2 .

It is not a de Polignac number, because 235231790049 - 2²⁵ = 235198235617 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 235231789986 and 235231790013.

It is not an unprimeable number, because it can be changed into a prime (235231790449) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 391400349 + ... + 391400949.

Almost surely, 2^235231790049 is an apocalyptic number.

235231790049 is the 485007-th square number.

235231790049 is the 242504-th centered octagonal number.

It is an amenable number.

235231790049 is a deficient number, since it is larger than the sum of its proper divisors (106383687960).

235231790049 is an frugal number, since it uses more digits than its factorization.

235231790049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 235231790049 in words is "two hundred thirty-five billion, two hundred thirty-one million, seven hundred ninety thousand, forty-nine".