30730976 has 48 divisors (see below), whose sum is σ = 63186480. Its totient is φ = 14699520.

The previous prime is 30730969. The next prime is 30730991. The reversal of 30730976 is 67903703.

It is a super-3 number, since 3×30730976³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 77210 + ... + 77606.

It is an arithmetic number, because the mean of its divisors is an integer number (1316385).

Almost surely, 2^30730976 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 30730976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31593240).

30730976 is an abundant number, since it is smaller than the sum of its proper divisors (32455504).

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

30730976 is a wasteful number, since it uses less digits than its factorization.

30730976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 35.

The square root of 30730976 is about 5543.5526515043. The cubic root of 30730976 is about 313.2267068410.

The spelling of 30730976 in words is "thirty million, seven hundred thirty thousand, nine hundred seventy-six".