30645026 has 8 divisors (see below), whose sum is σ = 46051740. Its totient is φ = 15294448.

The previous prime is 30644981. The next prime is 30645029. The reversal of 30645026 is 62054603.

It can be written as a sum of positive squares in 2 ways, for example, as 23088025 + 7557001 = 4805^2 + 2749^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30644986 and 30645004.

It is not an unprimeable number, because it can be changed into a prime (30645029) 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 3 ways as a sum of consecutive naturals, for example, 12641 + ... + 14868.

Almost surely, 2^30645026 is an apocalyptic number.

30645026 is a deficient number, since it is larger than the sum of its proper divisors (15406714).

30645026 is a wasteful number, since it uses less digits than its factorization.

30645026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28068.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 30645026 is about 5535.7949745271. The cubic root of 30645026 is about 312.9344178996.

Adding to 30645026 its reverse (62054603), we get a palindrome (92699629).

The spelling of 30645026 in words is "thirty million, six hundred forty-five thousand, twenty-six".