30026881 has 2 divisors, whose sum is σ = 30026882. Its totient is φ = 30026880.

The previous prime is 30026863. The next prime is 30026917. The reversal of 30026881 is 18862003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20930625 + 9096256 = 4575^2 + 3016^2 .

It is a cyclic number.

It is not a de Polignac number, because 30026881 - 2¹⁹ = 29502593 is a prime.

It is a super-2 number, since 2×30026881² = 1803227165176322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30024881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15013440 + 15013441.

It is an arithmetic number, because the mean of its divisors is an integer number (15013441).

Almost surely, 2^30026881 is an apocalyptic number.

It is an amenable number.

30026881 is a deficient number, since it is larger than the sum of its proper divisors (1).

30026881 is an equidigital number, since it uses as much as digits as its factorization.

30026881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 30026881 is about 5479.6789139511. The cubic root of 30026881 is about 310.8160290200.

Adding to 30026881 its reverse (18862003), we get a palindrome (48888884).

The spelling of 30026881 in words is "thirty million, twenty-six thousand, eight hundred eighty-one".