30034920 has 64 divisors (see below), whose sum is σ = 95411520. Its totient is φ = 7537664.

The previous prime is 30034909. The next prime is 30034933. The reversal of 30034920 is 2943003.

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 15 ways as a sum of consecutive naturals, for example, 5322 + ... + 9401.

It is an arithmetic number, because the mean of its divisors is an integer number (1490805).

Almost surely, 2^30034920 is an apocalyptic number.

30034920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30034920 is an abundant number, since it is smaller than the sum of its proper divisors (65376600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30034920 is a wasteful number, since it uses less digits than its factorization.

30034920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14754 (or 14750 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 30034920 is about 5480.4123932420. The cubic root of 30034920 is about 310.8437644693.

Adding to 30034920 its reverse (2943003), we get a palindrome (32977923).

The spelling of 30034920 in words is "thirty million, thirty-four thousand, nine hundred twenty".