30731052 has 24 divisors (see below), whose sum is σ = 78224832. Its totient is φ = 9312400.

The previous prime is 30731047. The next prime is 30731083. The reversal of 30731052 is 25013703.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116274 + ... + 116537.

It is an arithmetic number, because the mean of its divisors is an integer number (3259368).

Almost surely, 2^30731052 is an apocalyptic number.

It is an amenable number.

30731052 is an abundant number, since it is smaller than the sum of its proper divisors (47493780).

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

30731052 is a wasteful number, since it uses less digits than its factorization.

30731052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232829 (or 232827 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 30731052 is about 5543.5595063100. The cubic root of 30731052 is about 313.2269650518.

Adding to 30731052 its reverse (25013703), we get a palindrome (55744755).

The spelling of 30731052 in words is "thirty million, seven hundred thirty-one thousand, fifty-two".