30312022 has 32 divisors (see below), whose sum is σ = 51565248. Its totient is φ = 13259136.

The previous prime is 30312013. The next prime is 30312053. The reversal of 30312022 is 22021303.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 30311993 and 30312011.

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 15 ways as a sum of consecutive naturals, for example, 103308 + ... + 103600.

It is an arithmetic number, because the mean of its divisors is an integer number (1611414).

Almost surely, 2^30312022 is an apocalyptic number.

30312022 is a deficient number, since it is larger than the sum of its proper divisors (21253226).

30312022 is a wasteful number, since it uses less digits than its factorization.

30312022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 30312022 is about 5505.6354764913. The cubic root of 30312022 is about 311.7967871872.

Adding to 30312022 its reverse (22021303), we get a palindrome (52333325).

The spelling of 30312022 in words is "thirty million, three hundred twelve thousand, twenty-two".