30145736 has 16 divisors (see below), whose sum is σ = 56970240. Its totient is φ = 14953680.

The previous prime is 30145729. The next prime is 30145751. The reversal of 30145736 is 63754103.

It is a super-4 number, since 4×30145736⁴ (a number of 31 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30145699 and 30145708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13820 + ... + 15851.

It is an arithmetic number, because the mean of its divisors is an integer number (3560640).

Almost surely, 2^30145736 is an apocalyptic number.

It is an amenable number.

30145736 is a deficient number, since it is larger than the sum of its proper divisors (26824504).

30145736 is a wasteful number, since it uses less digits than its factorization.

30145736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29804 (or 29800 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 30145736 is about 5490.5132729099. The cubic root of 30145736 is about 311.2255887480.

Adding to 30145736 its reverse (63754103), we get a palindrome (93899839).

The spelling of 30145736 in words is "thirty million, one hundred forty-five thousand, seven hundred thirty-six".