30826281 has 4 divisors (see below), whose sum is σ = 41101712. Its totient is φ = 20550852.

The previous prime is 30826273. The next prime is 30826319. The reversal of 30826281 is 18262803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30826281 - 2³ = 30826273 is a prime.

It is a super-2 number, since 2×30826281² = 1900519200581922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30826241) 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, 5137711 + ... + 5137716.

It is an arithmetic number, because the mean of its divisors is an integer number (10275428).

Almost surely, 2^30826281 is an apocalyptic number.

It is an amenable number.

30826281 is a deficient number, since it is larger than the sum of its proper divisors (10275431).

30826281 is a wasteful number, since it uses less digits than its factorization.

30826281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10275430.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 30826281 is about 5552.1420190770. The cubic root of 30826281 is about 313.5501726994.

The spelling of 30826281 in words is "thirty million, eight hundred twenty-six thousand, two hundred eighty-one".