30971484 has 60 divisors (see below), whose sum is σ = 85743504. Its totient is φ = 9714816.

The previous prime is 30971483. The next prime is 30971489. The reversal of 30971484 is 48417903.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30971483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2697 + ... + 8319.

Almost surely, 2^30971484 is an apocalyptic number.

30971484 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30971484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42871752).

30971484 is an abundant number, since it is smaller than the sum of its proper divisors (54772020).

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

30971484 is a wasteful number, since it uses less digits than its factorization.

30971484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5656 (or 5645 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 30971484 is about 5565.2029612585. The cubic root of 30971484 is about 314.0417135274.

The spelling of 30971484 in words is "thirty million, nine hundred seventy-one thousand, four hundred eighty-four".