30404192 has 96 divisors (see below), whose sum is σ = 75442752. Its totient is φ = 11741184.

The previous prime is 30404189. The next prime is 30404201. The reversal of 30404192 is 29140403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154238 + ... + 154434.

It is an arithmetic number, because the mean of its divisors is an integer number (785862).

Almost surely, 2^30404192 is an apocalyptic number.

30404192 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30404192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37721376).

30404192 is an abundant number, since it is smaller than the sum of its proper divisors (45038560).

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

30404192 is a wasteful number, since it uses less digits than its factorization.

30404192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 30404192 is about 5513.9996372869. Note that the first 3 decimals coincide. The cubic root of 30404192 is about 312.1124950463.

Adding to 30404192 its reverse (29140403), we get a palindrome (59544595).

The spelling of 30404192 in words is "thirty million, four hundred four thousand, one hundred ninety-two".