30442968 has 48 divisors (see below), whose sum is σ = 84375720. Its totient is φ = 9910656.

The previous prime is 30442967. The next prime is 30442969. The reversal of 30442968 is 86924403.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30442967) and next prime (30442969).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30442963) 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 11 ways as a sum of consecutive naturals, for example, 1821 + ... + 8012.

Almost surely, 2^30442968 is an apocalyptic number.

It is an amenable number.

30442968 is an abundant number, since it is smaller than the sum of its proper divisors (53932752).

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

30442968 is a wasteful number, since it uses less digits than its factorization.

30442968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9888 (or 9881 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 30442968 is about 5517.5146578872. The cubic root of 30442968 is about 312.2451229505.

The spelling of 30442968 in words is "thirty million, four hundred forty-two thousand, nine hundred sixty-eight".