30407445 has 24 divisors (see below), whose sum is σ = 53995032. Its totient is φ = 15820800.

The previous prime is 30407437. The next prime is 30407453. The reversal of 30407445 is 54470403.

It is an interprime number because it is at equal distance from previous prime (30407437) and next prime (30407453).

It can be written as a sum of positive squares in 4 ways, for example, as 3249 + 30404196 = 57^2 + 5514^2 .

It is not a de Polignac number, because 30407445 - 2³ = 30407437 is a prime.

It is a super-2 number, since 2×30407445² = 1849225422856050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6396 + ... + 10085.

It is an arithmetic number, because the mean of its divisors is an integer number (2249793).

Almost surely, 2^30407445 is an apocalyptic number.

It is an amenable number.

30407445 is a deficient number, since it is larger than the sum of its proper divisors (23587587).

30407445 is a wasteful number, since it uses less digits than its factorization.

30407445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16533 (or 16530 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 30407445 is about 5514.2946058404. The cubic root of 30407445 is about 312.1236258112.

Adding to 30407445 its reverse (54470403), we get a palindrome (84877848).

The spelling of 30407445 in words is "thirty million, four hundred seven thousand, four hundred forty-five".