30502152 has 48 divisors (see below), whose sum is σ = 83856240. Its totient is φ = 10014048.

The previous prime is 30502139. The next prime is 30502177. The reversal of 30502152 is 25120503.

It is a happy number.

It is a super-2 number, since 2×30502152² = 1860762553262208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 1663 + ... + 7985.

It is an arithmetic number, because the mean of its divisors is an integer number (1747005).

Almost surely, 2^30502152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30502152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41928120).

30502152 is an abundant number, since it is smaller than the sum of its proper divisors (53354088).

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

30502152 is a wasteful number, since it uses less digits than its factorization.

30502152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6402 (or 6395 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 30502152 is about 5522.8753380825. The cubic root of 30502152 is about 312.4473366189.

Adding to 30502152 its reverse (25120503), we get a palindrome (55622655).

The spelling of 30502152 in words is "thirty million, five hundred two thousand, one hundred fifty-two".