260421707 has 8 divisors (see below), whose sum is σ = 320519136. Its totient is φ = 206047872.

The previous prime is 260421673. The next prime is 260421719. The reversal of 260421707 is 707124062.

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

It is a cyclic number.

It is not a de Polignac number, because 260421707 - 2¹⁴ = 260405323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 260421707.

It is not an unprimeable number, because it can be changed into a prime (260421727) 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, 1430798 + ... + 1430979.

It is an arithmetic number, because the mean of its divisors is an integer number (40064892).

Almost surely, 2^260421707 is an apocalyptic number.

260421707 is a deficient number, since it is larger than the sum of its proper divisors (60097429).

260421707 is a wasteful number, since it uses less digits than its factorization.

260421707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861797.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 260421707 is about 16137.5867774584. The cubic root of 260421707 is about 638.5953135867.

Adding to 260421707 its reverse (707124062), we get a palindrome (967545769).

It can be divided in two parts, 2604 and 21707, that multiplied together give a triangular number (56525028 = T₁₀₆₃₂).

The spelling of 260421707 in words is "two hundred sixty million, four hundred twenty-one thousand, seven hundred seven".