30220622 has 4 divisors (see below), whose sum is σ = 45330936. Its totient is φ = 15110310.

The previous prime is 30220591. The next prime is 30220633. The reversal of 30220622 is 22602203.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30220622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7555154 + ... + 7555157.

It is an arithmetic number, because the mean of its divisors is an integer number (11332734).

Almost surely, 2^30220622 is an apocalyptic number.

30220622 is a deficient number, since it is larger than the sum of its proper divisors (15110314).

30220622 is a wasteful number, since it uses less digits than its factorization.

30220622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15110313.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30220622 is about 5497.3286239773. The cubic root of 30220622 is about 311.4830841725.

Adding to 30220622 its reverse (22602203), we get a palindrome (52822825).

The spelling of 30220622 in words is "thirty million, two hundred twenty thousand, six hundred twenty-two".