215054384 has 20 divisors (see below), whose sum is σ = 420493920. Its totient is φ = 106539840.

The previous prime is 215054383. The next prime is 215054429. The reversal of 215054384 is 483450512.

It is a self number, because there is not a number n which added to its sum of digits gives 215054384.

It is not an unprimeable number, because it can be changed into a prime (215054383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59912 + ... + 63399.

It is an arithmetic number, because the mean of its divisors is an integer number (21024696).

Almost surely, 2^215054384 is an apocalyptic number.

It is an amenable number.

215054384 is a deficient number, since it is larger than the sum of its proper divisors (205439536).

215054384 is a wasteful number, since it uses less digits than its factorization.

215054384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123428 (or 123422 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 215054384 is about 14664.7326603658. The cubic root of 215054384 is about 599.1231488072.

The spelling of 215054384 in words is "two hundred fifteen million, fifty-four thousand, three hundred eighty-four".