235521028 has 6 divisors (see below), whose sum is σ = 412161806. Its totient is φ = 117760512.

The previous prime is 235521023. The next prime is 235521031. The reversal of 235521028 is 820125532.

It can be written as a sum of positive squares in only one way, i.e., 205578244 + 29942784 = 14338^2 + 5472^2 .

It is a junction number, because it is equal to n+sod(n) for n = 235520987 and 235521005.

It is not an unprimeable number, because it can be changed into a prime (235521023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29440125 + ... + 29440132.

Almost surely, 2^235521028 is an apocalyptic number.

It is an amenable number.

235521028 is a deficient number, since it is larger than the sum of its proper divisors (176640778).

235521028 is a wasteful number, since it uses less digits than its factorization.

235521028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58880261 (or 58880259 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 235521028 is about 15346.6943671919. The cubic root of 235521028 is about 617.5563088516.

The spelling of 235521028 in words is "two hundred thirty-five million, five hundred twenty-one thousand, twenty-eight".