30280023 has 12 divisors (see below), whose sum is σ = 44920408. Its totient is φ = 19640880.

The previous prime is 30280001. The next prime is 30280027. The reversal of 30280023 is 32008203.

It is not a de Polignac number, because 30280023 - 2⁶ = 30279959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30279978 and 30280005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30280027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45133 + ... + 45798.

Almost surely, 2^30280023 is an apocalyptic number.

30280023 is a deficient number, since it is larger than the sum of its proper divisors (14640385).

30280023 is a wasteful number, since it uses less digits than its factorization.

30280023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90974 (or 90971 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30280023 is about 5502.7286867517. The cubic root of 30280023 is about 311.6870320734.

Adding to 30280023 its reverse (32008203), we get a palindrome (62288226).

The spelling of 30280023 in words is "thirty million, two hundred eighty thousand, twenty-three".