30312044 has 12 divisors (see below), whose sum is σ = 60624144. Its totient is φ = 12990864.

The previous prime is 30312013. The next prime is 30312053. The reversal of 30312044 is 44021303.

30312044 is an admirable number.

It is a super-2 number, since 2×30312044² = 1837640022915872, which contains 22 as substring.

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, 541259 + ... + 541314.

It is an arithmetic number, because the mean of its divisors is an integer number (5052012).

Almost surely, 2^30312044 is an apocalyptic number.

It is an amenable number.

30312044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30312044 is a wasteful number, since it uses less digits than its factorization.

30312044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082584 (or 1082582 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30312044 is about 5505.6374744438. The cubic root of 30312044 is about 311.7968626196.

Adding to 30312044 its reverse (44021303), we get a palindrome (74333347).

The spelling of 30312044 in words is "thirty million, three hundred twelve thousand, forty-four".