235840406 has 8 divisors (see below), whose sum is σ = 355879440. Its totient is φ = 117213928.

The previous prime is 235840391. The next prime is 235840421. The reversal of 235840406 is 604048532.

235840406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (235840391) and next prime (235840421).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352721 + ... + 353388.

It is an arithmetic number, because the mean of its divisors is an integer number (44484930).

Almost surely, 2^235840406 is an apocalyptic number.

235840406 is a deficient number, since it is larger than the sum of its proper divisors (120039034).

235840406 is a wasteful number, since it uses less digits than its factorization.

235840406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706278.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 235840406 is about 15357.0962750124. The cubic root of 235840406 is about 617.8353282590.

Adding to 235840406 its reverse (604048532), we get a palindrome (839888938).

The spelling of 235840406 in words is "two hundred thirty-five million, eight hundred forty thousand, four hundred six".