233785240690 has 8 divisors (see below), whose sum is σ = 420813433260. Its totient is φ = 93514096272.

The previous prime is 233785240657. The next prime is 233785240697. The reversal of 233785240690 is 96042587332.

It can be written as a sum of positive squares in 2 ways, for example, as 233415563161 + 369677529 = 483131^2 + 19227^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×233785240690² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (233785240697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11689262025 + ... + 11689262044.

Almost surely, 2^233785240690 is an apocalyptic number.

233785240690 is a deficient number, since it is larger than the sum of its proper divisors (187028192570).

233785240690 is a wasteful number, since it uses less digits than its factorization.

233785240690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23378524076.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 233785240690 in words is "two hundred thirty-three billion, seven hundred eighty-five million, two hundred forty thousand, six hundred ninety".