30773388 has 48 divisors (see below), whose sum is σ = 76688640. Its totient is φ = 9576000.

The previous prime is 30773377. The next prime is 30773389. The reversal of 30773388 is 88337703.

It is not an unprimeable number, because it can be changed into a prime (30773389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15238 + ... + 17138.

It is an arithmetic number, because the mean of its divisors is an integer number (1597680).

Almost surely, 2^30773388 is an apocalyptic number.

30773388 is a gapful number since it is divisible by the number (38) 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 30773388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38344320).

30773388 is an abundant number, since it is smaller than the sum of its proper divisors (45915252).

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

30773388 is a wasteful number, since it uses less digits than its factorization.

30773388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998 (or 1996 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 30773388 is about 5547.3766773133. The cubic root of 30773388 is about 313.3707359405.

The spelling of 30773388 in words is "thirty million, seven hundred seventy-three thousand, three hundred eighty-eight".