212340032 has 14 divisors (see below), whose sum is σ = 421362378. Its totient is φ = 106169984.

The previous prime is 212340019. The next prime is 212340041. The reversal of 212340032 is 230043212.

It can be written as a sum of positive squares in only one way, i.e., 156150016 + 56190016 = 12496^2 + 7496^2 .

It is a super-2 number, since 2×212340032² = 90176578379522048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1658843 + ... + 1658970.

Almost surely, 2^212340032 is an apocalyptic number.

It is an amenable number.

212340032 is a deficient number, since it is larger than the sum of its proper divisors (209022346).

212340032 is an equidigital number, since it uses as much as digits as its factorization.

212340032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317825 (or 3317815 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 212340032 is about 14571.8918469772. The cubic root of 212340032 is about 596.5918178879.

Adding to 212340032 its reverse (230043212), we get a palindrome (442383244).

The spelling of 212340032 in words is "two hundred twelve million, three hundred forty thousand, thirty-two".