30404292 has 12 divisors (see below), whose sum is σ = 70943376. Its totient is φ = 10134760.

The previous prime is 30404287. The next prime is 30404299. The reversal of 30404292 is 29240403.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (30404299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1266834 + ... + 1266857.

It is an arithmetic number, because the mean of its divisors is an integer number (5911948).

Almost surely, 2^30404292 is an apocalyptic number.

It is an amenable number.

30404292 is an abundant number, since it is smaller than the sum of its proper divisors (40539084).

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

30404292 is a wasteful number, since it uses less digits than its factorization.

30404292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533698 (or 2533696 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 30404292 is about 5514.0087051074. The cubic root of 30404292 is about 312.1128372274.

Adding to 30404292 its reverse (29240403), we get a palindrome (59644695).

The spelling of 30404292 in words is "thirty million, four hundred four thousand, two hundred ninety-two".