212142336 has 72 divisors (see below), whose sum is σ = 645282624. Its totient is φ = 60610560.

The previous prime is 212142313. The next prime is 212142377. The reversal of 212142336 is 633241212.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14355 + ... + 25106.

Almost surely, 2^212142336 is an apocalyptic number.

It is an amenable number.

212142336 is an abundant number, since it is smaller than the sum of its proper divisors (433140288).

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

212142336 is an equidigital number, since it uses as much as digits as its factorization.

212142336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39487 (or 39473 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 212142336 is about 14565.1067967248. The cubic root of 212142336 is about 596.4066111118.

Adding to 212142336 its reverse (633241212), we get a palindrome (845383548).

The spelling of 212142336 in words is "two hundred twelve million, one hundred forty-two thousand, three hundred thirty-six".