30040075 has 12 divisors (see below), whose sum is σ = 40115488. Its totient is φ = 22183200.

The previous prime is 30040069. The next prime is 30040099. The reversal of 30040075 is 57004003.

It is not a de Polignac number, because 30040075 - 2³ = 30040067 is a prime.

It is a super-2 number, since 2×30040075² = 1804812212011250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45891 + ... + 46540.

Almost surely, 2^30040075 is an apocalyptic number.

30040075 is a deficient number, since it is larger than the sum of its proper divisors (10075413).

30040075 is a wasteful number, since it uses less digits than its factorization.

30040075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92454 (or 92449 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 30040075 is about 5480.8826843858. The cubic root of 30040075 is about 310.8615471918.

Adding to 30040075 its reverse (57004003), we get a palindrome (87044078).

The spelling of 30040075 in words is "thirty million, forty thousand, seventy-five".