30731074 has 8 divisors (see below), whose sum is σ = 50287248. Its totient is φ = 13968660.

The previous prime is 30731047. The next prime is 30731083. The reversal of 30731074 is 47013703.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698412 + ... + 698455.

It is an arithmetic number, because the mean of its divisors is an integer number (6285906).

Almost surely, 2^30731074 is an apocalyptic number.

30731074 is a deficient number, since it is larger than the sum of its proper divisors (19556174).

30731074 is a wasteful number, since it uses less digits than its factorization.

30731074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396880.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 30731074 is about 5543.5614905943. The cubic root of 30731074 is about 313.2270397969.

Adding to 30731074 its reverse (47013703), we get a palindrome (77744777).

The spelling of 30731074 in words is "thirty million, seven hundred thirty-one thousand, seventy-four".