212078036 has 12 divisors (see below), whose sum is σ = 371507220. Its totient is φ = 105933120.

The previous prime is 212078033. The next prime is 212078063. The reversal of 212078036 is 630870212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 173712400 + 38365636 = 13180^2 + 6194^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212078033) 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, 21881 + ... + 30048.

It is an arithmetic number, because the mean of its divisors is an integer number (30958935).

Almost surely, 2^212078036 is an apocalyptic number.

It is an amenable number.

212078036 is a deficient number, since it is larger than the sum of its proper divisors (159429184).

212078036 is a wasteful number, since it uses less digits than its factorization.

212078036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52954 (or 52952 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 212078036 is about 14562.8992992467. The cubic root of 212078036 is about 596.3463483955.

The spelling of 212078036 in words is "two hundred twelve million, seventy-eight thousand, thirty-six".