213974224 has 10 divisors (see below), whose sum is σ = 414575090. Its totient is φ = 106987104.

The previous prime is 213974171. The next prime is 213974227. The reversal of 213974224 is 422479312.

213974224 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 202549824 + 11424400 = 14232^2 + 3380^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213974224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213974227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6686679 + ... + 6686710.

It is an arithmetic number, because the mean of its divisors is an integer number (41457509).

Almost surely, 2^213974224 is an apocalyptic number.

It is an amenable number.

213974224 is a deficient number, since it is larger than the sum of its proper divisors (200600866).

213974224 is a wasteful number, since it uses less digits than its factorization.

213974224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13373397 (or 13373391 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 213974224 is about 14627.8578062545. The cubic root of 213974224 is about 598.1183868699.

The spelling of 213974224 in words is "two hundred thirteen million, nine hundred seventy-four thousand, two hundred twenty-four".