30532086 has 128 divisors (see below), whose sum is σ = 79994880. Its totient is φ = 8553600.

The previous prime is 30532057. The next prime is 30532091. The reversal of 30532086 is 68023503.

It is a super-2 number, since 2×30532086² = 1864416551022792, 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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 500496 + ... + 500556.

It is an arithmetic number, because the mean of its divisors is an integer number (624960).

Almost surely, 2^30532086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30532086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39997440).

30532086 is an abundant number, since it is smaller than the sum of its proper divisors (49462794).

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

30532086 is a wasteful number, since it uses less digits than its factorization.

30532086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 30532086 is about 5525.5846749462. The cubic root of 30532086 is about 312.5495123682.

Adding to 30532086 its reverse (68023503), we get a palindrome (98555589).

The spelling of 30532086 in words is "thirty million, five hundred thirty-two thousand, eighty-six".