30426444 has 18 divisors (see below), whose sum is σ = 76911380. Its totient is φ = 10142136.

The previous prime is 30426433. The next prime is 30426449. The reversal of 30426444 is 44462403.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (30426449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 422554 + ... + 422625.

Almost surely, 2^30426444 is an apocalyptic number.

It is an amenable number.

30426444 is an abundant number, since it is smaller than the sum of its proper divisors (46484936).

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

30426444 is a wasteful number, since it uses less digits than its factorization.

30426444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845189 (or 845184 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 30426444 is about 5516.0170413080. The cubic root of 30426444 is about 312.1886186898.

Adding to 30426444 its reverse (44462403), we get a palindrome (74888847).

The spelling of 30426444 in words is "thirty million, four hundred twenty-six thousand, four hundred forty-four".