30307152 has 20 divisors (see below), whose sum is σ = 78293600. Its totient is φ = 10102368.

The previous prime is 30307133. The next prime is 30307157. The reversal of 30307152 is 25170303.

It is a happy number.

It is a super-2 number, since 2×30307152² = 1837046924702208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30307157) by changing a digit.

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, 315652 + ... + 315747.

It is an arithmetic number, because the mean of its divisors is an integer number (3914680).

Almost surely, 2^30307152 is an apocalyptic number.

It is an amenable number.

30307152 is an abundant number, since it is smaller than the sum of its proper divisors (47986448).

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

30307152 is a wasteful number, since it uses less digits than its factorization.

30307152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631410 (or 631404 counting only the distinct ones).

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

The square root of 30307152 is about 5505.1931846212. The cubic root of 30307152 is about 311.7800882937.

Adding to 30307152 its reverse (25170303), we get a palindrome (55477455).

The spelling of 30307152 in words is "thirty million, three hundred seven thousand, one hundred fifty-two".