30112656 has 160 divisors (see below), whose sum is σ = 95232000. Its totient is φ = 8184960.

The previous prime is 30112651. The next prime is 30112657. The reversal of 30112656 is 65621103.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 510355 + ... + 510413.

It is an arithmetic number, because the mean of its divisors is an integer number (595200).

Almost surely, 2^30112656 is an apocalyptic number.

It is a pronic number, being equal to 5487×5488.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30112656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47616000).

30112656 is an abundant number, since it is smaller than the sum of its proper divisors (65119344).

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

30112656 is a wasteful number, since it uses less digits than its factorization.

30112656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 30112656 is about 5487.4999772210. The cubic root of 30112656 is about 311.1117074063. Note that the first 3 decimals are identical.

Adding to 30112656 its sum of digits (24), we get a triangular number (30112680 = T₇₇₆₀).

Adding to 30112656 its reverse (65621103), we get a palindrome (95733759).

The spelling of 30112656 in words is "thirty million, one hundred twelve thousand, six hundred fifty-six".