30952530 has 160 divisors (see below), whose sum is σ = 97853184. Its totient is φ = 6873984.

The previous prime is 30952513. The next prime is 30952531. The reversal of 30952530 is 3525903.

It is a super-2 number, since 2×30952530² = 1916118226801800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30952494 and 30952503.

It is not an unprimeable number, because it can be changed into a prime (30952531) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 300459 + ... + 300561.

Almost surely, 2^30952530 is an apocalyptic number.

30952530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30952530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48926592).

30952530 is an abundant number, since it is smaller than the sum of its proper divisors (66900654).

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

30952530 is a wasteful number, since it uses less digits than its factorization.

30952530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The square root of 30952530 is about 5563.4997977892. The cubic root of 30952530 is about 313.9776377978.

It can be divided in two parts, 3095 and 2530, that added together give a square (5625 = 75²).

The spelling of 30952530 in words is "thirty million, nine hundred fifty-two thousand, five hundred thirty".