30740812 has 12 divisors (see below), whose sum is σ = 55651680.
Its totient is φ = 14840336.
The previous prime is 30740807. The next prime is 30740813. The reversal of 30740812 is 21804703.
It is not an unprimeable number, because it can be changed into a prime (30740813) 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 3 ways as a sum of consecutive naturals, for example, 132388 + ... + 132619.
It is an arithmetic number, because the mean of its divisors is an integer number (4637640).
Almost surely, 230740812 is an apocalyptic number.
It is an amenable number.
30740812 is a deficient number, since it is larger than the sum of its proper divisors (24910868).
30740812 is a wasteful number, since it uses less digits than its factorization.
30740812 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 265040 (or 265038 counting only the distinct ones).
The product of its (nonzero) digits is 1344, while the sum is 25.
The square root of 30740812 is about 5544.4397372503.
The cubic root of 30740812 is about 313.2601212179.
The spelling of 30740812 in words is "thirty million, seven hundred forty thousand, eight hundred twelve".