261044414 has 4 divisors (see below), whose sum is σ = 391566624. Its totient is φ = 130522206.

The previous prime is 261044383. The next prime is 261044429. The reversal of 261044414 is 414440162.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65261102 + ... + 65261105.

It is an arithmetic number, because the mean of its divisors is an integer number (97891656).

Almost surely, 2^261044414 is an apocalyptic number.

261044414 is a deficient number, since it is larger than the sum of its proper divisors (130522210).

261044414 is a wasteful number, since it uses less digits than its factorization.

261044414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130522209.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 261044414 is about 16156.8689417226. The cubic root of 261044414 is about 639.1039005294.

Adding to 261044414 its reverse (414440162), we get a palindrome (675484576).

The spelling of 261044414 in words is "two hundred sixty-one million, forty-four thousand, four hundred fourteen".