30099742 has 16 divisors (see below), whose sum is σ = 46645632. Its totient is φ = 14558040.

The previous prime is 30099737. The next prime is 30099749. The reversal of 30099742 is 24799003.

It is a junction number, because it is equal to n+sod(n) for n = 30099698 and 30099707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30099749) 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 7 ways as a sum of consecutive naturals, for example, 7567 + ... + 10837.

It is an arithmetic number, because the mean of its divisors is an integer number (2915352).

Almost surely, 2^30099742 is an apocalyptic number.

30099742 is a deficient number, since it is larger than the sum of its proper divisors (16545890).

30099742 is a wasteful number, since it uses less digits than its factorization.

30099742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 30099742 is about 5486.3231767733. The cubic root of 30099742 is about 311.0672269829.

The spelling of 30099742 in words is "thirty million, ninety-nine thousand, seven hundred forty-two".