30040031 has 8 divisors (see below), whose sum is σ = 34382880. Its totient is φ = 25710048.

The previous prime is 30040013. The next prime is 30040057. The reversal of 30040031 is 13004003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30040031 - 2¹⁰ = 30039007 is a prime.

It is a super-2 number, since 2×30040031² = 1804806924961922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30039994 and 30040021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30040631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2465 + ... + 8133.

It is an arithmetic number, because the mean of its divisors is an integer number (4297860).

Almost surely, 2^30040031 is an apocalyptic number.

30040031 is a deficient number, since it is larger than the sum of its proper divisors (4342849).

30040031 is an equidigital number, since it uses as much as digits as its factorization.

30040031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6433.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 30040031 is about 5480.8786704323. The cubic root of 30040031 is about 310.8613954177.

Adding to 30040031 its reverse (13004003), we get a palindrome (43044034).

The spelling of 30040031 in words is "thirty million, forty thousand, thirty-one".