662220238 has 4 divisors (see below), whose sum is σ = 993330360. Its totient is φ = 331110118.

The previous prime is 662220211. The next prime is 662220239. The reversal of 662220238 is 832022266.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662220239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165555058 + ... + 165555061.

It is an arithmetic number, because the mean of its divisors is an integer number (248332590).

Almost surely, 2^662220238 is an apocalyptic number.

662220238 is a deficient number, since it is larger than the sum of its proper divisors (331110122).

662220238 is a wasteful number, since it uses less digits than its factorization.

662220238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331110121.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 662220238 is about 25733.6402011064. The cubic root of 662220238 is about 871.6339742248.

It can be divided in two parts, 662 and 220238, that added together give a square (220900 = 470²).

The spelling of 662220238 in words is "six hundred sixty-two million, two hundred twenty thousand, two hundred thirty-eight".