213247392 has 48 divisors (see below), whose sum is σ = 560558880. Its totient is φ = 70982912.

The previous prime is 213247379. The next prime is 213247423. The reversal of 213247392 is 293742312.

213247392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105463 + ... + 107465.

It is an arithmetic number, because the mean of its divisors is an integer number (11678310).

Almost surely, 2^213247392 is an apocalyptic number.

It is an amenable number.

213247392 is an abundant number, since it is smaller than the sum of its proper divisors (347311488).

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

213247392 is a wasteful number, since it uses less digits than its factorization.

213247392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125 (or 3117 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 213247392 is about 14602.9925700180. The cubic root of 213247392 is about 597.4403850351.

The spelling of 213247392 in words is "two hundred thirteen million, two hundred forty-seven thousand, three hundred ninety-two".