214985394 has 32 divisors (see below), whose sum is σ = 514496640. Its totient is φ = 66149136.

The previous prime is 214985389. The next prime is 214985401. The reversal of 214985394 is 493589412.

214985394 is a `hidden beast` number, since 21 + 4 + 98 + 539 + 4 = 666.

It is a super-3 number, since 3×214985394³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

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, 152422 + ... + 153825.

It is an arithmetic number, because the mean of its divisors is an integer number (16078020).

Almost surely, 2^214985394 is an apocalyptic number.

214985394 is an abundant number, since it is smaller than the sum of its proper divisors (299511246).

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

214985394 is a wasteful number, since it uses less digits than its factorization.

214985394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306271 (or 306265 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 214985394 is about 14662.3802296899. The cubic root of 214985394 is about 599.0590752055.

The spelling of 214985394 in words is "two hundred fourteen million, nine hundred eighty-five thousand, three hundred ninety-four".