30039445 has 16 divisors (see below), whose sum is σ = 36712368. Its totient is φ = 23592960.

The previous prime is 30039431. The next prime is 30039463. The reversal of 30039445 is 54493003.

It can be written as a sum of positive squares in 8 ways, for example, as 3845521 + 26193924 = 1961^2 + 5118^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30039445 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, 116757 + ... + 117013.

It is an arithmetic number, because the mean of its divisors is an integer number (2294523).

Almost surely, 2^30039445 is an apocalyptic number.

It is an amenable number.

30039445 is a deficient number, since it is larger than the sum of its proper divisors (6672923).

30039445 is a wasteful number, since it uses less digits than its factorization.

30039445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 30039445 is about 5480.8252115899. The cubic root of 30039445 is about 310.8593740487.

The spelling of 30039445 in words is "thirty million, thirty-nine thousand, four hundred forty-five".