215060920 has 32 divisors (see below), whose sum is σ = 490522320. Its totient is φ = 84844800.

The previous prime is 215060891. The next prime is 215060921. The reversal of 215060920 is 29060512.

It is a super-2 number, since 2×215060920² = 92502398622492800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215060921) 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, 33906 + ... + 39745.

Almost surely, 2^215060920 is an apocalyptic number.

215060920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215060920 is an abundant number, since it is smaller than the sum of its proper divisors (275461400).

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

215060920 is a wasteful number, since it uses less digits than its factorization.

215060920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73735 (or 73731 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 215060920 is about 14664.9555062400. The cubic root of 215060920 is about 599.1292183250.

The spelling of 215060920 in words is "two hundred fifteen million, sixty thousand, nine hundred twenty".