212428694 has 16 divisors (see below), whose sum is σ = 320884416. Its totient is φ = 105470400.

The previous prime is 212428679. The next prime is 212428703. The reversal of 212428694 is 496824212.

It is a happy number.

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, 241784 + ... + 242660.

It is an arithmetic number, because the mean of its divisors is an integer number (20055276).

Almost surely, 2^212428694 is an apocalyptic number.

212428694 is a deficient number, since it is larger than the sum of its proper divisors (108455722).

212428694 is a wasteful number, since it uses less digits than its factorization.

212428694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591.

The product of its digits is 55296, while the sum is 38.

The square root of 212428694 is about 14574.9337562817. The cubic root of 212428694 is about 596.6748414278.

The spelling of 212428694 in words is "two hundred twelve million, four hundred twenty-eight thousand, six hundred ninety-four".