30703222 has 16 divisors (see below), whose sum is σ = 50715072. Its totient is φ = 13824520.

The previous prime is 30703213. The next prime is 30703223. The reversal of 30703222 is 22230703.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30703222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30703223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4168 + ... + 8875.

It is an arithmetic number, because the mean of its divisors is an integer number (3169692).

Almost surely, 2^30703222 is an apocalyptic number.

30703222 is a deficient number, since it is larger than the sum of its proper divisors (20011850).

30703222 is a wasteful number, since it uses less digits than its factorization.

30703222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13163.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 30703222 is about 5541.0488176879. The cubic root of 30703222 is about 313.1323838536.

Adding to 30703222 its reverse (22230703), we get a palindrome (52933925).

The spelling of 30703222 in words is "thirty million, seven hundred three thousand, two hundred twenty-two".