261026230 has 16 divisors (see below), whose sum is σ = 470642400. Its totient is φ = 104233792.

The previous prime is 261026221. The next prime is 261026243. The reversal of 261026230 is 32620162.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15799 + ... + 27778.

It is an arithmetic number, because the mean of its divisors is an integer number (29415150).

Almost surely, 2^261026230 is an apocalyptic number.

261026230 is a deficient number, since it is larger than the sum of its proper divisors (209616170).

261026230 is a wasteful number, since it uses less digits than its factorization.

261026230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44183.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 261026230 is about 16156.3061991286. The cubic root of 261026230 is about 639.0890604811.

Adding to 261026230 its reverse (32620162), we get a palindrome (293646392).

The spelling of 261026230 in words is "two hundred sixty-one million, twenty-six thousand, two hundred thirty".