30342720 has 56 divisors (see below), whose sum is σ = 96341184. Its totient is φ = 8091136.

The previous prime is 30342709. The next prime is 30342743. The reversal of 30342720 is 2724303.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14844 + ... + 16763.

Almost surely, 2^30342720 is an apocalyptic number.

30342720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30342720 is an abundant number, since it is smaller than the sum of its proper divisors (65998464).

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

30342720 is a wasteful number, since it uses less digits than its factorization.

30342720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31627 (or 31617 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 30342720 is about 5508.4226417369. The cubic root of 30342720 is about 311.9020073586.

The spelling of 30342720 in words is "thirty million, three hundred forty-two thousand, seven hundred twenty".