30220374 has 16 divisors (see below), whose sum is σ = 63622080. Its totient is φ = 9543240.

The previous prime is 30220361. The next prime is 30220387. The reversal of 30220374 is 47302203.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30220361) and next prime (30220387).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30220374.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132432 + ... + 132659.

It is an arithmetic number, because the mean of its divisors is an integer number (3976380).

Almost surely, 2^30220374 is an apocalyptic number.

30220374 is an abundant number, since it is smaller than the sum of its proper divisors (33401706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30220374 is a wasteful number, since it uses less digits than its factorization.

30220374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265115.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 30220374 is about 5497.3060675207. The cubic root of 30220374 is about 311.4822321272.

Adding to 30220374 its reverse (47302203), we get a palindrome (77522577).

The spelling of 30220374 in words is "thirty million, two hundred twenty thousand, three hundred seventy-four".