212748424 has 16 divisors (see below), whose sum is σ = 455889600. Its totient is φ = 91177872.

The previous prime is 212748407. The next prime is 212748427. The reversal of 212748424 is 424847212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 212748424.

It is not an unprimeable number, because it can be changed into a prime (212748427) 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 3 ways as a sum of consecutive naturals, for example, 1899484 + ... + 1899595.

It is an arithmetic number, because the mean of its divisors is an integer number (28493100).

Almost surely, 2^212748424 is an apocalyptic number.

It is an amenable number.

212748424 is an abundant number, since it is smaller than the sum of its proper divisors (243141176).

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

212748424 is a wasteful number, since it uses less digits than its factorization.

212748424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3799092 (or 3799088 counting only the distinct ones).

The product of its digits is 28672, while the sum is 34.

The square root of 212748424 is about 14585.8981211306. The cubic root of 212748424 is about 596.9740464781.

The spelling of 212748424 in words is "two hundred twelve million, seven hundred forty-eight thousand, four hundred twenty-four".