30641112 has 64 divisors (see below), whose sum is σ = 87120000. Its totient is φ = 9973152.

The previous prime is 30641111. The next prime is 30641137. The reversal of 30641112 is 21114603.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30641111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7639 + ... + 10937.

It is an arithmetic number, because the mean of its divisors is an integer number (1361250).

Almost surely, 2^30641112 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 30641112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43560000).

30641112 is an abundant number, since it is smaller than the sum of its proper divisors (56478888).

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

30641112 is a wasteful number, since it uses less digits than its factorization.

30641112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357 (or 3347 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 30641112 is about 5535.4414458108. The cubic root of 30641112 is about 312.9210946123.

Adding to 30641112 its reverse (21114603), we get a palindrome (51755715).

The spelling of 30641112 in words is "thirty million, six hundred forty-one thousand, one hundred twelve".