212404302 has 32 divisors (see below), whose sum is σ = 514920960. Its totient is φ = 64364760.

The previous prime is 212404261. The next prime is 212404303. The reversal of 212404302 is 203404212.

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

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212404303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178198 + ... + 179385.

It is an arithmetic number, because the mean of its divisors is an integer number (16091280).

Almost surely, 2^212404302 is an apocalyptic number.

212404302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212404302 is an abundant number, since it is smaller than the sum of its proper divisors (302516658).

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

212404302 is a wasteful number, since it uses less digits than its factorization.

212404302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357605 (or 357599 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 212404302 is about 14574.0969531563. The cubic root of 212404302 is about 596.6520029410.

Adding to 212404302 its reverse (203404212), we get a palindrome (415808514).

The spelling of 212404302 in words is "two hundred twelve million, four hundred four thousand, three hundred two".