30273345 has 40 divisors (see below), whose sum is σ = 57473064. Its totient is φ = 15192576.

The previous prime is 30273317. The next prime is 30273349. The reversal of 30273345 is 54337203.

It can be written as a sum of positive squares in 4 ways, for example, as 5948721 + 24324624 = 2439^2 + 4932^2 .

It is not a de Polignac number, because 30273345 - 2⁶ = 30273281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30273349) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4687 + ... + 9083.

Almost surely, 2^30273345 is an apocalyptic number.

It is an amenable number.

30273345 is a deficient number, since it is larger than the sum of its proper divisors (27199719).

30273345 is a wasteful number, since it uses less digits than its factorization.

30273345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4431 (or 4422 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 27.

The square root of 30273345 is about 5502.1218634269. The cubic root of 30273345 is about 311.6641170860.

The spelling of 30273345 in words is "thirty million, two hundred seventy-three thousand, three hundred forty-five".