30029745 has 16 divisors (see below), whose sum is σ = 48545280. Its totient is φ = 15849984.

The previous prime is 30029737. The next prime is 30029749. The reversal of 30029745 is 54792003.

It is not a de Polignac number, because 30029745 - 2³ = 30029737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30029749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8865 + ... + 11774.

It is an arithmetic number, because the mean of its divisors is an integer number (3034080).

Almost surely, 2^30029745 is an apocalyptic number.

It is an amenable number.

30029745 is a deficient number, since it is larger than the sum of its proper divisors (18515535).

30029745 is a wasteful number, since it uses less digits than its factorization.

30029745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20744.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 30029745 is about 5479.9402369004. The cubic root of 30029745 is about 310.8259107080.

The spelling of 30029745 in words is "thirty million, twenty-nine thousand, seven hundred forty-five".