30749382 has 40 divisors (see below), whose sum is σ = 69954456. Its totient is φ = 10093248.

The previous prime is 30749377. The next prime is 30749387. The reversal of 30749382 is 28394703.

It is an interprime number because it is at equal distance from previous prime (30749377) and next prime (30749387).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30749387) 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, 9438 + ... + 12270.

Almost surely, 2^30749382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30749382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34977228).

30749382 is an abundant number, since it is smaller than the sum of its proper divisors (39205074).

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

30749382 is a wasteful number, since it uses less digits than its factorization.

30749382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914 (or 2905 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 30749382 is about 5545.2125297413. The cubic root of 30749382 is about 313.2892289917.

The spelling of 30749382 in words is "thirty million, seven hundred forty-nine thousand, three hundred eighty-two".