215036880 has 40 divisors (see below), whose sum is σ = 666615072. Its totient is φ = 57343104.

The previous prime is 215036849. The next prime is 215036881. The reversal of 215036880 is 88630512.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215036881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447754 + ... + 448233.

Almost surely, 2^215036880 is an apocalyptic number.

215036880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215036880 is an abundant number, since it is smaller than the sum of its proper divisors (451578192).

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

215036880 is a wasteful number, since it uses less digits than its factorization.

215036880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896003 (or 895997 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 215036880 is about 14664.1358422513. The cubic root of 215036880 is about 599.1068934831.

The spelling of 215036880 in words is "two hundred fifteen million, thirty-six thousand, eight hundred eighty".