30449145 has 16 divisors (see below), whose sum is σ = 48926592. Its totient is φ = 16170240.

The previous prime is 30449143. The next prime is 30449147. The reversal of 30449145 is 54194403.

It is an interprime number because it is at equal distance from previous prime (30449143) and next prime (30449147).

It is not a de Polignac number, because 30449145 - 2¹ = 30449143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30449141) 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, 597 + ... + 7826.

It is an arithmetic number, because the mean of its divisors is an integer number (3057912).

Almost surely, 2^30449145 is an apocalyptic number.

It is an amenable number.

30449145 is a deficient number, since it is larger than the sum of its proper divisors (18477447).

30449145 is a wasteful number, since it uses less digits than its factorization.

30449145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8672.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 30449145 is about 5518.0743923945. The cubic root of 30449145 is about 312.2662401171.

The spelling of 30449145 in words is "thirty million, four hundred forty-nine thousand, one hundred forty-five".