212313402 has 48 divisors (see below), whose sum is σ = 526773312. Its totient is φ = 60540480.

The previous prime is 212313383. The next prime is 212313433. The reversal of 212313402 is 204313212.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76377 + ... + 79107.

It is an arithmetic number, because the mean of its divisors is an integer number (10974444).

Almost surely, 2^212313402 is an apocalyptic number.

212313402 is an abundant number, since it is smaller than the sum of its proper divisors (314459910).

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

212313402 is a wasteful number, since it uses less digits than its factorization.

212313402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363 (or 3360 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 212313402 is about 14570.9780728680. The cubic root of 212313402 is about 596.5668769097.

Adding to 212313402 its reverse (204313212), we get a palindrome (416626614).

The spelling of 212313402 in words is "two hundred twelve million, three hundred thirteen thousand, four hundred two".