217152038 has 16 divisors (see below), whose sum is σ = 336680304. Its totient is φ = 104963040.

The previous prime is 217152011. The next prime is 217152041. The reversal of 217152038 is 830251712.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 217152038.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2273 + ... + 20963.

It is an arithmetic number, because the mean of its divisors is an integer number (21042519).

Almost surely, 2^217152038 is an apocalyptic number.

217152038 is a deficient number, since it is larger than the sum of its proper divisors (119528266).

217152038 is a wasteful number, since it uses less digits than its factorization.

217152038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18887.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 217152038 is about 14736.0794650409. The cubic root of 217152038 is about 601.0648110298.

The spelling of 217152038 in words is "two hundred seventeen million, one hundred fifty-two thousand, thirty-eight".