30726072 has 96 divisors (see below), whose sum is σ = 94938480. Its totient is φ = 8893440.

The previous prime is 30726067. The next prime is 30726083. The reversal of 30726072 is 27062703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14947 + ... + 16877.

Almost surely, 2^30726072 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 30726072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47469240).

30726072 is an abundant number, since it is smaller than the sum of its proper divisors (64212408).

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

30726072 is a wasteful number, since it uses less digits than its factorization.

30726072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973 (or 1966 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 30726072 is about 5543.1103182239. The cubic root of 30726072 is about 313.2100445490.

Adding to 30726072 its reverse (27062703), we get a palindrome (57788775).

The spelling of 30726072 in words is "thirty million, seven hundred twenty-six thousand, seventy-two".