30072542 has 8 divisors (see below), whose sum is σ = 46564032. Its totient is φ = 14551200.

The previous prime is 30072533. The next prime is 30072551. The reversal of 30072542 is 24527003.

It is an interprime number because it is at equal distance from previous prime (30072533) and next prime (30072551).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242459 + ... + 242582.

It is an arithmetic number, because the mean of its divisors is an integer number (5820504).

Almost surely, 2^30072542 is an apocalyptic number.

30072542 is a deficient number, since it is larger than the sum of its proper divisors (16491490).

30072542 is a wasteful number, since it uses less digits than its factorization.

30072542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485074.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 30072542 is about 5483.8437249798. The cubic root of 30072542 is about 310.9734988429.

Adding to 30072542 its reverse (24527003), we get a palindrome (54599545).

The spelling of 30072542 in words is "thirty million, seventy-two thousand, five hundred forty-two".