30874872 has 64 divisors (see below), whose sum is σ = 90616320. Its totient is φ = 8581248.

The previous prime is 30874871. The next prime is 30874889. The reversal of 30874872 is 27847803.

It is a self number, because there is not a number n which added to its sum of digits gives 30874872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30874871) 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, 3733 + ... + 8699.

It is an arithmetic number, because the mean of its divisors is an integer number (1415880).

Almost surely, 2^30874872 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 30874872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45308160).

30874872 is an abundant number, since it is smaller than the sum of its proper divisors (59741448).

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

30874872 is a wasteful number, since it uses less digits than its factorization.

30874872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5020 (or 5016 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 30874872 is about 5556.5161747268. The cubic root of 30874872 is about 313.7148343417.

The spelling of 30874872 in words is "thirty million, eight hundred seventy-four thousand, eight hundred seventy-two".