30020534 has 8 divisors (see below), whose sum is σ = 45173808. Its totient is φ = 14962600.

The previous prime is 30020527. The next prime is 30020561. The reversal of 30020534 is 43502003.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 23042 + ... + 24309.

It is an arithmetic number, because the mean of its divisors is an integer number (5646726).

Almost surely, 2^30020534 is an apocalyptic number.

30020534 is a deficient number, since it is larger than the sum of its proper divisors (15153274).

30020534 is a wasteful number, since it uses less digits than its factorization.

30020534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47670.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 30020534 is about 5479.0997435710. The cubic root of 30020534 is about 310.7941276627.

Adding to 30020534 its reverse (43502003), we get a palindrome (73522537).

The spelling of 30020534 in words is "thirty million, twenty thousand, five hundred thirty-four".