30040192 has 64 divisors (see below), whose sum is σ = 73684800. Its totient is φ = 11879424.

The previous prime is 30040181. The next prime is 30040193. The reversal of 30040192 is 29104003.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (30040193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10359 + ... + 12937.

It is an arithmetic number, because the mean of its divisors is an integer number (1151325).

Almost surely, 2^30040192 is an apocalyptic number.

30040192 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 30040192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36842400).

30040192 is an abundant number, since it is smaller than the sum of its proper divisors (43644608).

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

30040192 is a wasteful number, since it uses less digits than its factorization.

30040192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613 (or 2601 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 30040192 is about 5480.8933578387. The cubic root of 30040192 is about 310.8619507722.

Adding to 30040192 its reverse (29104003), we get a palindrome (59144195).

The spelling of 30040192 in words is "thirty million, forty thousand, one hundred ninety-two".