212432330 has 16 divisors (see below), whose sum is σ = 417140064. Its totient is φ = 77248080.

The previous prime is 212432299. The next prime is 212432333. The reversal of 212432330 is 33234212.

It is not an unprimeable number, because it can be changed into a prime (212432333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965492 + ... + 965711.

It is an arithmetic number, because the mean of its divisors is an integer number (26071254).

Almost surely, 2^212432330 is an apocalyptic number.

212432330 is a deficient number, since it is larger than the sum of its proper divisors (204707734).

212432330 is a wasteful number, since it uses less digits than its factorization.

212432330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931221.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 212432330 is about 14575.0584904487. The cubic root of 212432330 is about 596.6782457033.

Adding to 212432330 its reverse (33234212), we get a palindrome (245666542).

The spelling of 212432330 in words is "two hundred twelve million, four hundred thirty-two thousand, three hundred thirty".