30396831 has 8 divisors (see below), whose sum is σ = 40597680. Its totient is φ = 20230272.

The previous prime is 30396811. The next prime is 30396893. The reversal of 30396831 is 13869303.

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

It is not a de Polignac number, because 30396831 - 2⁶ = 30396767 is a prime.

It is a super-2 number, since 2×30396831² = 1847934669685122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30396792 and 30396801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30396811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6426 + ... + 10103.

It is an arithmetic number, because the mean of its divisors is an integer number (5074710).

Almost surely, 2^30396831 is an apocalyptic number.

30396831 is a deficient number, since it is larger than the sum of its proper divisors (10200849).

30396831 is a wasteful number, since it uses less digits than its factorization.

30396831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17145.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 30396831 is about 5513.3321140668. The cubic root of 30396831 is about 312.0873050384.

It can be divided in two parts, 3039 and 6831, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 30396831 in words is "thirty million, three hundred ninety-six thousand, eight hundred thirty-one".