30970345 has 16 divisors (see below), whose sum is σ = 44972928. Its totient is φ = 19987200.

The previous prime is 30970343. The next prime is 30970409. The reversal of 30970345 is 54307903.

It is not a de Polignac number, because 30970345 - 2¹ = 30970343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30970343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25431 + ... + 26620.

It is an arithmetic number, because the mean of its divisors is an integer number (2810808).

Almost surely, 2^30970345 is an apocalyptic number.

30970345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30970345 is a deficient number, since it is larger than the sum of its proper divisors (14002583).

30970345 is a wasteful number, since it uses less digits than its factorization.

30970345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52080.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 30970345 is about 5565.1006280210. The cubic root of 30970345 is about 314.0378637721.

The spelling of 30970345 in words is "thirty million, nine hundred seventy thousand, three hundred forty-five".