30040311 has 16 divisors (see below), whose sum is σ = 48185600. Its totient is φ = 16262208.

The previous prime is 30040267. The next prime is 30040363. The reversal of 30040311 is 11304003.

It is not a de Polignac number, because 30040311 - 2¹¹ = 30038263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30040111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37246 + ... + 38043.

It is an arithmetic number, because the mean of its divisors is an integer number (3011600).

Almost surely, 2^30040311 is an apocalyptic number.

30040311 is a deficient number, since it is larger than the sum of its proper divisors (18145289).

30040311 is a wasteful number, since it uses less digits than its factorization.

30040311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75318.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 30040311 is about 5480.9042137224. The cubic root of 30040311 is about 310.8623612503.

Adding to 30040311 its reverse (11304003), we get a palindrome (41344314).

The spelling of 30040311 in words is "thirty million, forty thousand, three hundred eleven".