30020492 has 12 divisors (see below), whose sum is σ = 52590720. Its totient is φ = 14994576.

The previous prime is 30020491. The next prime is 30020503. The reversal of 30020492 is 29402003.

It is not an unprimeable number, because it can be changed into a prime (30020491) 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, 1109 + ... + 7827.

It is an arithmetic number, because the mean of its divisors is an integer number (4382560).

Almost surely, 2^30020492 is an apocalyptic number.

It is an amenable number.

30020492 is a deficient number, since it is larger than the sum of its proper divisors (22570228).

30020492 is a wasteful number, since it uses less digits than its factorization.

30020492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7840 (or 7838 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 30020492 is about 5479.0959108232. The cubic root of 30020492 is about 310.7939827246.

Adding to 30020492 its reverse (29402003), we get a palindrome (59422495).

The spelling of 30020492 in words is "thirty million, twenty thousand, four hundred ninety-two".