30450261 has 8 divisors (see below), whose sum is σ = 42000480. Its totient is φ = 19600112.

The previous prime is 30450257. The next prime is 30450263. The reversal of 30450261 is 16205403.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30450261 - 2² = 30450257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30450263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174915 + ... + 175088.

It is an arithmetic number, because the mean of its divisors is an integer number (5250060).

Almost surely, 2^30450261 is an apocalyptic number.

It is an amenable number.

30450261 is a deficient number, since it is larger than the sum of its proper divisors (11550219).

30450261 is a wasteful number, since it uses less digits than its factorization.

30450261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350035.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 30450261 is about 5518.1755137002. The cubic root of 30450261 is about 312.2700550559.

Adding to 30450261 its reverse (16205403), we get a palindrome (46655664).

The spelling of 30450261 in words is "thirty million, four hundred fifty thousand, two hundred sixty-one".