30844420 has 12 divisors (see below), whose sum is σ = 64773324. Its totient is φ = 12337760.

The previous prime is 30844337. The next prime is 30844439. The reversal of 30844420 is 2444803.

It can be written as a sum of positive squares in 2 ways, for example, as 5924356 + 24920064 = 2434^2 + 4992^2 .

It is an unprimeable number.

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, 771091 + ... + 771130.

It is an arithmetic number, because the mean of its divisors is an integer number (5397777).

Almost surely, 2^30844420 is an apocalyptic number.

It is an amenable number.

30844420 is an abundant number, since it is smaller than the sum of its proper divisors (33928904).

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

30844420 is a wasteful number, since it uses less digits than its factorization.

30844420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542230 (or 1542228 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 30844420 is about 5553.7752925375. The cubic root of 30844420 is about 313.6116610486.

The spelling of 30844420 in words is "thirty million, eight hundred forty-four thousand, four hundred twenty".