213422392 has 8 divisors (see below), whose sum is σ = 400167000. Its totient is φ = 106711192.

The previous prime is 213422389. The next prime is 213422399. The reversal of 213422392 is 293224312.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 213422392.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213422399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13338892 + ... + 13338907.

It is an arithmetic number, because the mean of its divisors is an integer number (50020875).

Almost surely, 2^213422392 is an apocalyptic number.

It is an amenable number.

213422392 is a deficient number, since it is larger than the sum of its proper divisors (186744608).

213422392 is a wasteful number, since it uses less digits than its factorization.

213422392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26677805 (or 26677801 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 213422392 is about 14608.9832637319. The cubic root of 213422392 is about 597.6037687924.

The spelling of 213422392 in words is "two hundred thirteen million, four hundred twenty-two thousand, three hundred ninety-two".