30294838 has 12 divisors (see below), whose sum is σ = 52861572. Its totient is φ = 12983460.

The previous prime is 30294793. The next prime is 30294851. The reversal of 30294838 is 83849203.

It is a junction number, because it is equal to n+sod(n) for n = 30294797 and 30294806.

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 5 ways as a sum of consecutive naturals, for example, 154468 + ... + 154663.

It is an arithmetic number, because the mean of its divisors is an integer number (4405131).

Almost surely, 2^30294838 is an apocalyptic number.

30294838 is a deficient number, since it is larger than the sum of its proper divisors (22566734).

30294838 is a wasteful number, since it uses less digits than its factorization.

30294838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309147 (or 309140 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 30294838 is about 5504.0746724586. The cubic root of 30294838 is about 311.7378564569.

It can be divided in two parts, 3029483 and 8, that added together give a triangular number (3029491 = T₂₄₆₁).

The spelling of 30294838 in words is "thirty million, two hundred ninety-four thousand, eight hundred thirty-eight".