30298945 has 4 divisors (see below), whose sum is σ = 36358740. Its totient is φ = 24239152.

The previous prime is 30298937. The next prime is 30298951. The reversal of 30298945 is 54989203.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15737089 + 14561856 = 3967^2 + 3816^2 .

It is a cyclic number.

It is not a de Polignac number, because 30298945 - 2³ = 30298937 is a prime.

It is a super-2 number, since 2×30298945² = 1836052136226050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30298898 and 30298907.

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, 3029890 + ... + 3029899.

It is an arithmetic number, because the mean of its divisors is an integer number (9089685).

Almost surely, 2^30298945 is an apocalyptic number.

It is an amenable number.

30298945 is a deficient number, since it is larger than the sum of its proper divisors (6059795).

30298945 is an equidigital number, since it uses as much as digits as its factorization.

30298945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6059794.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 30298945 is about 5504.4477470497. The cubic root of 30298945 is about 311.7519430099.

The spelling of 30298945 in words is "thirty million, two hundred ninety-eight thousand, nine hundred forty-five".