261038 has 8 divisors (see below), whose sum is σ = 400032. Its totient is φ = 127696.

The previous prime is 261031. The next prime is 261043. The reversal of 261038 is 830162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1295 + ... + 1482.

It is an arithmetic number, because the mean of its divisors is an integer number (50004).

2²⁶¹⁰³⁸ is an apocalyptic number.

261038 is a deficient number, since it is larger than the sum of its proper divisors (138994).

261038 is a wasteful number, since it uses less digits than its factorization.

261038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 261038 is about 510.9187802381. The cubic root of 261038 is about 63.9098666112.

The spelling of 261038 in words is "two hundred sixty-one thousand, thirty-eight".