212040162 has 24 divisors (see below), whose sum is σ = 461760156. Its totient is φ = 70320096.

The previous prime is 212040161. The next prime is 212040203. The reversal of 212040162 is 261040212.

It can be written as a sum of positive squares in 2 ways, for example, as 176863401 + 35176761 = 13299^2 + 5931^2 .

It is a super-2 number, since 2×212040162² = 89922060601972488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (212040161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26353 + ... + 33444.

Almost surely, 2^212040162 is an apocalyptic number.

212040162 is an abundant number, since it is smaller than the sum of its proper divisors (249719994).

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

212040162 is a wasteful number, since it uses less digits than its factorization.

212040162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60002 (or 59999 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 212040162 is about 14561.5988819909. The cubic root of 212040162 is about 596.3108467367.

Adding to 212040162 its reverse (261040212), we get a palindrome (473080374).

Subtracting 212040162 from its reverse (261040212), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 212040162 in words is "two hundred twelve million, forty thousand, one hundred sixty-two".