235464021 has 36 divisors (see below), whose sum is σ = 379501668. Its totient is φ = 139845888.

The previous prime is 235463981. The next prime is 235464023. The reversal of 235464021 is 120464532.

It can be written as a sum of positive squares in 6 ways, for example, as 52403121 + 183060900 = 7239^2 + 13530^2 .

It is not a de Polignac number, because 235464021 - 2¹¹ = 235461973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235464023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 97201 + ... + 99593.

It is an arithmetic number, because the mean of its divisors is an integer number (10541713).

Almost surely, 2^235464021 is an apocalyptic number.

It is an amenable number.

235464021 is a deficient number, since it is larger than the sum of its proper divisors (144037647).

235464021 is a wasteful number, since it uses less digits than its factorization.

235464021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470 (or 2438 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 235464021 is about 15344.8369492804. The cubic root of 235464021 is about 617.5064790854.

The spelling of 235464021 in words is "two hundred thirty-five million, four hundred sixty-four thousand, twenty-one".