30423445 has 16 divisors (see below), whose sum is σ = 39966192. Its totient is φ = 22095360.

The previous prime is 30423413. The next prime is 30423473. The reversal of 30423445 is 54432403.

It can be written as a sum of positive squares in 8 ways, for example, as 7017201 + 23406244 = 2649^2 + 4838^2 .

It is not a de Polignac number, because 30423445 - 2⁵ = 30423413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129 + ... + 7801.

It is an arithmetic number, because the mean of its divisors is an integer number (2497887).

Almost surely, 2^30423445 is an apocalyptic number.

It is an amenable number.

30423445 is a deficient number, since it is larger than the sum of its proper divisors (9542747).

30423445 is a wasteful number, since it uses less digits than its factorization.

30423445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7752.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 30423445 is about 5515.7451899086. The cubic root of 30423445 is about 312.1783613357.

Adding to 30423445 its reverse (54432403), we get a palindrome (84855848).

The spelling of 30423445 in words is "thirty million, four hundred twenty-three thousand, four hundred forty-five".