261032626 has 16 divisors (see below), whose sum is σ = 396307296. Its totient is φ = 128935296.

The previous prime is 261032573. The next prime is 261032627. The reversal of 261032626 is 626230162.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 261032594 and 261032603.

It is not an unprimeable number, because it can be changed into a prime (261032627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159625 + ... + 161251.

It is an arithmetic number, because the mean of its divisors is an integer number (24769206).

Almost surely, 2^261032626 is an apocalyptic number.

261032626 is a deficient number, since it is larger than the sum of its proper divisors (135274670).

261032626 is a wasteful number, since it uses less digits than its factorization.

261032626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 261032626 is about 16156.5041392004. The cubic root of 261032626 is about 639.0942803655.

Adding to 261032626 its reverse (626230162), we get a palindrome (887262788).

The spelling of 261032626 in words is "two hundred sixty-one million, thirty-two thousand, six hundred twenty-six".