30451242 has 8 divisors (see below), whose sum is σ = 60902496. Its totient is φ = 10150412.

The previous prime is 30451219. The next prime is 30451271. The reversal of 30451242 is 24215403.

It is a sphenic number, since it is the product of 3 distinct primes.

30451242 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2537598 + ... + 2537609.

It is an arithmetic number, because the mean of its divisors is an integer number (7612812).

Almost surely, 2^30451242 is an apocalyptic number.

30451242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30451242 is a wasteful number, since it uses less digits than its factorization.

30451242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075212.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 30451242 is about 5518.2644010594. The cubic root of 30451242 is about 312.2734084331.

Adding to 30451242 its reverse (24215403), we get a palindrome (54666645).

The spelling of 30451242 in words is "thirty million, four hundred fifty-one thousand, two hundred forty-two".