30400296 has 32 divisors (see below), whose sum is σ = 79306560. Its totient is φ = 9692672.

The previous prime is 30400289. The next prime is 30400297. The reversal of 30400296 is 69200403.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (30400297) 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, 26985 + ... + 28088.

It is an arithmetic number, because the mean of its divisors is an integer number (2478330).

Almost surely, 2^30400296 is an apocalyptic number.

It is an amenable number.

30400296 is an abundant number, since it is smaller than the sum of its proper divisors (48906264).

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

30400296 is a wasteful number, since it uses less digits than its factorization.

30400296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55105 (or 55101 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 30400296 is about 5513.6463433920. The cubic root of 30400296 is about 312.0991630884.

Adding to 30400296 its reverse (69200403), we get a palindrome (99600699).

The spelling of 30400296 in words is "thirty million, four hundred thousand, two hundred ninety-six".