30542730 has 16 divisors (see below), whose sum is σ = 73302624. Its totient is φ = 8144720.

The previous prime is 30542717. The next prime is 30542741. The reversal of 30542730 is 3724503.

It is a self number, because there is not a number n which added to its sum of digits gives 30542730.

It is an unprimeable number.

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, 509016 + ... + 509075.

It is an arithmetic number, because the mean of its divisors is an integer number (4581414).

Almost surely, 2^30542730 is an apocalyptic number.

30542730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30542730 is an abundant number, since it is smaller than the sum of its proper divisors (42759894).

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

30542730 is a wasteful number, since it uses less digits than its factorization.

30542730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018101.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 30542730 is about 5526.5477470117. The cubic root of 30542730 is about 312.5858281585.

The spelling of 30542730 in words is "thirty million, five hundred forty-two thousand, seven hundred thirty".