260237421 has 8 divisors (see below), whose sum is σ = 385536960. Its totient is φ = 173491596.

The previous prime is 260237413. The next prime is 260237423. The reversal of 260237421 is 124732062.

260237421 is a `hidden beast` number, since 2 + 6 + 0 + 237 + 421 = 666.

It is not a de Polignac number, because 260237421 - 2³ = 260237413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 9638423 = 260237421 / (2 + 6 + 0 + 2 + 3 + 7 + 4 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260237423) 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, 4819185 + ... + 4819238.

It is an arithmetic number, because the mean of its divisors is an integer number (48192120).

Almost surely, 2^260237421 is an apocalyptic number.

It is an amenable number.

260237421 is a deficient number, since it is larger than the sum of its proper divisors (125299539).

260237421 is an equidigital number, since it uses as much as digits as its factorization.

260237421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9638432 (or 9638426 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 260237421 is about 16131.8759293518. The cubic root of 260237421 is about 638.4446452115. Note that the first 3 decimals are identical.

Adding to 260237421 its reverse (124732062), we get a palindrome (384969483).

The spelling of 260237421 in words is "two hundred sixty million, two hundred thirty-seven thousand, four hundred twenty-one".