217474068 has 48 divisors (see below), whose sum is σ = 580665344. Its totient is φ = 62056800.

The previous prime is 217474067. The next prime is 217474069. The reversal of 217474068 is 860474712.

It is an interprime number because it is at equal distance from previous prime (217474067) and next prime (217474069).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217474063) 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 15 ways as a sum of consecutive naturals, for example, 110493 + ... + 112443.

Almost surely, 2^217474068 is an apocalyptic number.

217474068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

217474068 is an abundant number, since it is smaller than the sum of its proper divisors (363191276).

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

217474068 is a wasteful number, since it uses less digits than its factorization.

217474068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3292 (or 3290 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 217474068 is about 14747.0020004067. The cubic root of 217474068 is about 601.3617846770.

The spelling of 217474068 in words is "two hundred seventeen million, four hundred seventy-four thousand, sixty-eight".