30209394 has 16 divisors (see below), whose sum is σ = 60724800. Its totient is φ = 10018800.

The previous prime is 30209383. The next prime is 30209447. The reversal of 30209394 is 49390203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11457 + ... + 13844.

It is an arithmetic number, because the mean of its divisors is an integer number (3795300).

Almost surely, 2^30209394 is an apocalyptic number.

30209394 is an abundant number, since it is smaller than the sum of its proper divisors (30515406).

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

30209394 is a wasteful number, since it uses less digits than its factorization.

30209394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25505.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 30209394 is about 5496.3073058191. The cubic root of 30209394 is about 311.4445038362. Note that the first 3 decimals are identical.

Adding to 30209394 its reverse (49390203), we get a palindrome (79599597).

It can be divided in two parts, 30209 and 394, that added together give a palindrome (30603).

The spelling of 30209394 in words is "thirty million, two hundred nine thousand, three hundred ninety-four".