30726976 has 56 divisors (see below), whose sum is σ = 70445376. Its totient is φ = 13025280.

The previous prime is 30726959. The next prime is 30727013. The reversal of 30726976 is 67962703.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47616 + ... + 48256.

Almost surely, 2^30726976 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 30726976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35222688).

30726976 is an abundant number, since it is smaller than the sum of its proper divisors (39718400).

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

30726976 is a wasteful number, since it uses less digits than its factorization.

30726976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 30726976 is about 5543.1918602913. The cubic root of 30726976 is about 313.2131161978.

It can be divided in two parts, 3072697 and 6, that added together give a palindrome (3072703).

The spelling of 30726976 in words is "thirty million, seven hundred twenty-six thousand, nine hundred seventy-six".