30079040 has 28 divisors (see below), whose sum is σ = 71626476. Its totient is φ = 12031488.

The previous prime is 30079019. The next prime is 30079043. The reversal of 30079040 is 4097003.

It can be written as a sum of positive squares in 2 ways, for example, as 22505536 + 7573504 = 4744^2 + 2752^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30078997 and 30079015.

It is not an unprimeable number, because it can be changed into a prime (30079043) 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, 46679 + ... + 47318.

Almost surely, 2^30079040 is an apocalyptic number.

It is an amenable number.

30079040 is an abundant number, since it is smaller than the sum of its proper divisors (41547436).

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

30079040 is an equidigital number, since it uses as much as digits as its factorization.

30079040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94014 (or 94004 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 30079040 is about 5484.4361606276. The cubic root of 30079040 is about 310.9958953563.

The spelling of 30079040 in words is "thirty million, seventy-nine thousand, forty".