30029931 has 6 divisors (see below), whose sum is σ = 43376580. Its totient is φ = 20019948.

The previous prime is 30029911. The next prime is 30029941. The reversal of 30029931 is 13992003.

It is not a de Polignac number, because 30029931 - 2¹⁷ = 29898859 is a prime.

It is a super-2 number, since 2×30029931² = 1803593511729522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30029895 and 30029904.

It is not an unprimeable number, because it can be changed into a prime (30029911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1668321 + ... + 1668338.

It is an arithmetic number, because the mean of its divisors is an integer number (7229430).

Almost surely, 2^30029931 is an apocalyptic number.

30029931 is a deficient number, since it is larger than the sum of its proper divisors (13346649).

30029931 is a wasteful number, since it uses less digits than its factorization.

30029931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336665 (or 3336662 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 30029931 is about 5479.9572078621. The cubic root of 30029931 is about 310.8265524440.

The spelling of 30029931 in words is "thirty million, twenty-nine thousand, nine hundred thirty-one".