212755434 has 32 divisors (see below), whose sum is σ = 438465984. Its totient is φ = 68791680.

The previous prime is 212755429. The next prime is 212755441. The reversal of 212755434 is 434557212.

212755434 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212755395 and 212755404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22737 + ... + 30699.

It is an arithmetic number, because the mean of its divisors is an integer number (13702062).

Almost surely, 2^212755434 is an apocalyptic number.

212755434 is an abundant number, since it is smaller than the sum of its proper divisors (225710550).

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

212755434 is a wasteful number, since it uses less digits than its factorization.

212755434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8102.

The product of its digits is 33600, while the sum is 33.

The square root of 212755434 is about 14586.1384197463. The cubic root of 212755434 is about 596.9806031144.

The spelling of 212755434 in words is "two hundred twelve million, seven hundred fifty-five thousand, four hundred thirty-four".