30400242 has 16 divisors (see below), whose sum is σ = 60963840. Its totient is φ = 10106192.

The previous prime is 30400241. The next prime is 30400261. The reversal of 30400242 is 24200403.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30400241) 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, 4317 + ... + 8912.

It is an arithmetic number, because the mean of its divisors is an integer number (3810240).

Almost surely, 2^30400242 is an apocalyptic number.

30400242 is an abundant number, since it is smaller than the sum of its proper divisors (30563598).

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

30400242 is a wasteful number, since it uses less digits than its factorization.

30400242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13617.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 30400242 is about 5513.6414464490. The cubic root of 30400242 is about 312.0989782946.

Adding to 30400242 its reverse (24200403), we get a palindrome (54600645).

The spelling of 30400242 in words is "thirty million, four hundred thousand, two hundred forty-two".