260261421 has 8 divisors (see below), whose sum is σ = 396588864. Its totient is φ = 148720800.

The previous prime is 260261401. The next prime is 260261437. The reversal of 260261421 is 124162062.

260261421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 260261421 - 2¹³ = 260253229 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 260261391 and 260261400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260261401) 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, 6196680 + ... + 6196721.

It is an arithmetic number, because the mean of its divisors is an integer number (49573608).

Almost surely, 2^260261421 is an apocalyptic number.

260261421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

260261421 is a deficient number, since it is larger than the sum of its proper divisors (136327443).

260261421 is a wasteful number, since it uses less digits than its factorization.

260261421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12393411.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 260261421 is about 16132.6197810523. The cubic root of 260261421 is about 638.4642711367.

The spelling of 260261421 in words is "two hundred sixty million, two hundred sixty-one thousand, four hundred twenty-one".