215000260 has 24 divisors (see below), whose sum is σ = 454277376. Its totient is φ = 85471200.

The previous prime is 215000249. The next prime is 215000267. The reversal of 215000260 is 62000512.

It is a happy number.

It is a super-2 number, since 2×215000260² = 92450223600135200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (215000267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29716 + ... + 36235.

It is an arithmetic number, because the mean of its divisors is an integer number (18928224).

Almost surely, 2^215000260 is an apocalyptic number.

215000260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215000260 is an abundant number, since it is smaller than the sum of its proper divisors (239277116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215000260 is a wasteful number, since it uses less digits than its factorization.

215000260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66123 (or 66121 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 215000260 is about 14662.8871645389. The cubic root of 215000260 is about 599.0728829761.

Adding to 215000260 its reverse (62000512), we get a palindrome (277000772).

The spelling of 215000260 in words is "two hundred fifteen million, two hundred sixty", and thus it is an aban number.