212392068 has 36 divisors (see below), whose sum is σ = 576494352. Its totient is φ = 60683280.

The previous prime is 212392021. The next prime is 212392171. The reversal of 212392068 is 860293212.

It is a happy number.

It is a super-2 number, since 2×212392068² = 90220781098633248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180018 + ... + 181193.

It is an arithmetic number, because the mean of its divisors is an integer number (16013732).

Almost surely, 2^212392068 is an apocalyptic number.

212392068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

212392068 is an abundant number, since it is smaller than the sum of its proper divisors (364102284).

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

212392068 is a wasteful number, since it uses less digits than its factorization.

212392068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361232 (or 361223 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 212392068 is about 14573.6772298552. The cubic root of 212392068 is about 596.6405474593.

The spelling of 212392068 in words is "two hundred twelve million, three hundred ninety-two thousand, sixty-eight".