213223742 has 8 divisors (see below), whose sum is σ = 320727600. Its totient is φ = 106314544.

The previous prime is 213223733. The next prime is 213223753. The reversal of 213223742 is 247322312.

It is a happy number.

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

It is a congruent number.

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, 147767 + ... + 149202.

It is an arithmetic number, because the mean of its divisors is an integer number (40090950).

Almost surely, 2^213223742 is an apocalyptic number.

213223742 is a deficient number, since it is larger than the sum of its proper divisors (107503858).

213223742 is a wasteful number, since it uses less digits than its factorization.

213223742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297330.

The product of its digits is 4032, while the sum is 26.

The square root of 213223742 is about 14602.1827820364. The cubic root of 213223742 is about 597.4182980319.

The spelling of 213223742 in words is "two hundred thirteen million, two hundred twenty-three thousand, seven hundred forty-two".