30440827 has 4 divisors (see below), whose sum is σ = 30528400. Its totient is φ = 30353256.

The previous prime is 30440803. The next prime is 30440843. The reversal of 30440827 is 72804403.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30440827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30440795 and 30440804.

It is not an unprimeable number, because it can be changed into a prime (30440857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43263 + ... + 43960.

It is an arithmetic number, because the mean of its divisors is an integer number (7632100).

Almost surely, 2^30440827 is an apocalyptic number.

30440827 is a deficient number, since it is larger than the sum of its proper divisors (87573).

30440827 is an equidigital number, since it uses as much as digits as its factorization.

30440827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87572.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 30440827 is about 5517.3206359609. The cubic root of 30440827 is about 312.2378028968.

The spelling of 30440827 in words is "thirty million, four hundred forty thousand, eight hundred twenty-seven".