212386946 has 8 divisors (see below), whose sum is σ = 319435644. Its totient is φ = 105908400.

The previous prime is 212386943. The next prime is 212386963. The reversal of 212386946 is 649683212.

It can be written as a sum of positive squares in 2 ways, for example, as 211557025 + 829921 = 14545^2 + 911^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (212386943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141605 + ... + 143096.

Almost surely, 2^212386946 is an apocalyptic number.

212386946 is a deficient number, since it is larger than the sum of its proper divisors (107048698).

212386946 is a wasteful number, since it uses less digits than its factorization.

212386946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285076.

The product of its digits is 124416, while the sum is 41.

The square root of 212386946 is about 14573.5015010120. The cubic root of 212386946 is about 596.6357512704.

The spelling of 212386946 in words is "two hundred twelve million, three hundred eighty-six thousand, nine hundred forty-six".