30220766 has 8 divisors (see below), whose sum is σ = 45357384. Its totient is φ = 15101640.

The previous prime is 30220741. The next prime is 30220777. The reversal of 30220766 is 66702203.

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, 1556 + ... + 7928.

It is an arithmetic number, because the mean of its divisors is an integer number (5669673).

Almost surely, 2^30220766 is an apocalyptic number.

30220766 is a deficient number, since it is larger than the sum of its proper divisors (15136618).

30220766 is a wasteful number, since it uses less digits than its factorization.

30220766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8746.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 30220766 is about 5497.3417212322. The cubic root of 30220766 is about 311.4835789064.

Adding to 30220766 its reverse (66702203), we get a palindrome (96922969).

It can be divided in two parts, 30 and 220766, that multiplied together give a triangular number (6622980 = T₃₆₃₉).

The spelling of 30220766 in words is "thirty million, two hundred twenty thousand, seven hundred sixty-six".