331620622 has 8 divisors (see below), whose sum is σ = 501348096. Its totient is φ = 164504592.

The previous prime is 331620617. The next prime is 331620643. The reversal of 331620622 is 226026133.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652543 + ... + 653050.

It is an arithmetic number, because the mean of its divisors is an integer number (62668512).

Almost surely, 2^331620622 is an apocalyptic number.

331620622 is a deficient number, since it is larger than the sum of its proper divisors (169727474).

331620622 is a wasteful number, since it uses less digits than its factorization.

331620622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305722.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 331620622 is about 18210.4536461890. The cubic root of 331620622 is about 692.1717069200.

Adding to 331620622 its reverse (226026133), we get a palindrome (557646755).

The spelling of 331620622 in words is "three hundred thirty-one million, six hundred twenty thousand, six hundred twenty-two".