213433442 has 8 divisors (see below), whose sum is σ = 321368256. Its totient is φ = 106310692.

The previous prime is 213433433. The next prime is 213433469. The reversal of 213433442 is 244334312.

213433442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202358 + ... + 203409.

It is an arithmetic number, because the mean of its divisors is an integer number (40171032).

Almost surely, 2^213433442 is an apocalyptic number.

213433442 is a deficient number, since it is larger than the sum of its proper divisors (107934814).

213433442 is a wasteful number, since it uses less digits than its factorization.

213433442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406032.

The product of its digits is 6912, while the sum is 26.

The square root of 213433442 is about 14609.3614507959. The cubic root of 213433442 is about 597.6140823114.

Adding to 213433442 its reverse (244334312), we get a palindrome (457767754).

The spelling of 213433442 in words is "two hundred thirteen million, four hundred thirty-three thousand, four hundred forty-two".