217468152 has 80 divisors (see below), whose sum is σ = 664507800. Its totient is φ = 65897280.

The previous prime is 217468127. The next prime is 217468171. The reversal of 217468152 is 251864712.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8127 + ... + 22382.

Almost surely, 2^217468152 is an apocalyptic number.

217468152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

217468152 is an abundant number, since it is smaller than the sum of its proper divisors (447039648).

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

217468152 is a wasteful number, since it uses less digits than its factorization.

217468152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30538 (or 30525 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 217468152 is about 14746.8014159003. The cubic root of 217468152 is about 601.3563316305.

The spelling of 217468152 in words is "two hundred seventeen million, four hundred sixty-eight thousand, one hundred fifty-two".