30542442 has 16 divisors (see below), whose sum is σ = 69811392. Its totient is φ = 8726400.

The previous prime is 30542441. The next prime is 30542497. The reversal of 30542442 is 24424503.

It is not an unprimeable number, because it can be changed into a prime (30542441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363559 + ... + 363642.

It is an arithmetic number, because the mean of its divisors is an integer number (4363212).

Almost surely, 2^30542442 is an apocalyptic number.

30542442 is an abundant number, since it is smaller than the sum of its proper divisors (39268950).

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

30542442 is a wasteful number, since it uses less digits than its factorization.

30542442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727213.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 30542442 is about 5526.5216909011. The cubic root of 30542442 is about 312.5848456551.

Adding to 30542442 its reverse (24424503), we get a palindrome (54966945).

The spelling of 30542442 in words is "thirty million, five hundred forty-two thousand, four hundred forty-two".