260740215 has 48 divisors (see below), whose sum is σ = 475832448. Its totient is φ = 136943136.

The previous prime is 260740201. The next prime is 260740219. The reversal of 260740215 is 512047062.

260740215 is a `hidden beast` number, since 2 + 607 + 40 + 2 + 15 = 666.

It is not a de Polignac number, because 260740215 - 2⁴ = 260740199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260740219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79804 + ... + 83006.

It is an arithmetic number, because the mean of its divisors is an integer number (9913176).

Almost surely, 2^260740215 is an apocalyptic number.

260740215 is a deficient number, since it is larger than the sum of its proper divisors (215092233).

260740215 is an equidigital number, since it uses as much as digits as its factorization.

260740215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290 (or 3278 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 260740215 is about 16147.4522758236. The cubic root of 260740215 is about 638.8555515588.

Adding to 260740215 its reverse (512047062), we get a palindrome (772787277).

The spelling of 260740215 in words is "two hundred sixty million, seven hundred forty thousand, two hundred fifteen".