30406844 has 24 divisors (see below), whose sum is σ = 57539328. Its totient is φ = 13976640.

The previous prime is 30406843. The next prime is 30406847. The reversal of 30406844 is 44860403.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30406841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13349 + ... + 15459.

It is an arithmetic number, because the mean of its divisors is an integer number (2397472).

Almost surely, 2^30406844 is an apocalyptic number.

It is an amenable number.

30406844 is a deficient number, since it is larger than the sum of its proper divisors (27132484).

30406844 is a wasteful number, since it uses less digits than its factorization.

30406844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405 (or 2403 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 30406844 is about 5514.2401108403. The cubic root of 30406844 is about 312.1215694340.

The spelling of 30406844 in words is "thirty million, four hundred six thousand, eight hundred forty-four".