30281026 has 8 divisors (see below), whose sum is σ = 45456444. Its totient is φ = 15128880.

The previous prime is 30281023. The next prime is 30281039. The reversal of 30281026 is 62018203.

It can be written as a sum of positive squares in 2 ways, for example, as 30239001 + 42025 = 5499^2 + 205^2 .

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

It is a super-2 number, since 2×30281026² = 1833881071225352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30280988 and 30281006.

It is not an unprimeable number, because it can be changed into a prime (30281021) 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 3 ways as a sum of consecutive naturals, for example, 2085 + ... + 8056.

Almost surely, 2^30281026 is an apocalyptic number.

30281026 is a deficient number, since it is larger than the sum of its proper divisors (15175418).

30281026 is a wasteful number, since it uses less digits than its factorization.

30281026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11636.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 30281026 is about 5502.8198226000. The cubic root of 30281026 is about 311.6904734913.

Adding to 30281026 its reverse (62018203), we get a palindrome (92299229).

The spelling of 30281026 in words is "thirty million, two hundred eighty-one thousand, twenty-six".