30494960 has 40 divisors (see below), whose sum is σ = 71714160. Its totient is φ = 12058112.

The previous prime is 30494951. The next prime is 30494969. The reversal of 30494960 is 6949403.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30494951) and next prime (30494969).

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 30494960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30494969) 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 7 ways as a sum of consecutive naturals, for example, 4979 + ... + 9261.

It is an arithmetic number, because the mean of its divisors is an integer number (1792854).

Almost surely, 2^30494960 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 30494960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35857080).

30494960 is an abundant number, since it is smaller than the sum of its proper divisors (41219200).

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

30494960 is a wasteful number, since it uses less digits than its factorization.

30494960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385 (or 4379 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 30494960 is about 5522.2241895816. The cubic root of 30494960 is about 312.4227777191.

The spelling of 30494960 in words is "thirty million, four hundred ninety-four thousand, nine hundred sixty".