212926394 has 8 divisors (see below), whose sum is σ = 338177268. Its totient is φ = 100200640.

The previous prime is 212926393. The next prime is 212926477. The reversal of 212926394 is 493629212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 206295769 + 6630625 = 14363^2 + 2575^2 .

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 (212926391) 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, 3131237 + ... + 3131304.

Almost surely, 2^212926394 is an apocalyptic number.

212926394 is a deficient number, since it is larger than the sum of its proper divisors (125250874).

212926394 is a wasteful number, since it uses less digits than its factorization.

212926394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6262560.

The product of its digits is 46656, while the sum is 38.

The square root of 212926394 is about 14591.9976014252. The cubic root of 212926394 is about 597.1404619053.

The spelling of 212926394 in words is "two hundred twelve million, nine hundred twenty-six thousand, three hundred ninety-four".