30422440 has 16 divisors (see below), whose sum is σ = 68450580. Its totient is φ = 12168960.

The previous prime is 30422437. The next prime is 30422443. The reversal of 30422440 is 4422403.

It is an interprime number because it is at equal distance from previous prime (30422437) and next prime (30422443).

It can be written as a sum of positive squares in 2 ways, for example, as 28879876 + 1542564 = 5374^2 + 1242^2 .

It is not an unprimeable number, because it can be changed into a prime (30422443) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 380241 + ... + 380320.

Almost surely, 2^30422440 is an apocalyptic number.

It is an amenable number.

30422440 is an abundant number, since it is smaller than the sum of its proper divisors (38028140).

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

30422440 is a wasteful number, since it uses less digits than its factorization.

30422440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760572 (or 760568 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 30422440 is about 5515.6540863256. The cubic root of 30422440 is about 312.1749238255.

Adding to 30422440 its reverse (4422403), we get a palindrome (34844843).

The spelling of 30422440 in words is "thirty million, four hundred twenty-two thousand, four hundred forty".