235420869 has 16 divisors (see below), whose sum is σ = 328838400. Its totient is φ = 149612736.

The previous prime is 235420853. The next prime is 235420873. The reversal of 235420869 is 968024532.

It is a happy number.

It is not a de Polignac number, because 235420869 - 2⁴ = 235420853 is a prime.

It is a super-2 number, since 2×235420869² = 110845971121430322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235420769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10254 + ... + 23999.

It is an arithmetic number, because the mean of its divisors is an integer number (20552400).

Almost surely, 2^235420869 is an apocalyptic number.

235420869 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

235420869 is a deficient number, since it is larger than the sum of its proper divisors (93417531).

235420869 is a wasteful number, since it uses less digits than its factorization.

235420869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34364.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 235420869 is about 15343.4308093073. The cubic root of 235420869 is about 617.4687546135.

The spelling of 235420869 in words is "two hundred thirty-five million, four hundred twenty thousand, eight hundred sixty-nine".