30521422 has 8 divisors (see below), whose sum is σ = 47259072. Its totient is φ = 14768400.

The previous prime is 30521389. The next prime is 30521459. The reversal of 30521422 is 22412503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30521422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246079 + ... + 246202.

It is an arithmetic number, because the mean of its divisors is an integer number (5907384).

Almost surely, 2^30521422 is an apocalyptic number.

30521422 is a deficient number, since it is larger than the sum of its proper divisors (16737650).

30521422 is a wasteful number, since it uses less digits than its factorization.

30521422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492314.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 30521422 is about 5524.6196249154. The cubic root of 30521422 is about 312.5131198758.

Adding to 30521422 its reverse (22412503), we get a palindrome (52933925).

The spelling of 30521422 in words is "thirty million, five hundred twenty-one thousand, four hundred twenty-two".