30939400337 has 4 divisors (see below), whose sum is σ = 32284591680. Its totient is φ = 29594208996.

The previous prime is 30939400321. The next prime is 30939400351. The reversal of 30939400337 is 73300493903.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30939400337 - 2⁴ = 30939400321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30939400294 and 30939400303.

It is not an unprimeable number, because it can be changed into a prime (30939400537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672595637 + ... + 672595682.

It is an arithmetic number, because the mean of its divisors is an integer number (8071147920).

Almost surely, 2^30939400337 is an apocalyptic number.

It is an amenable number.

30939400337 is a deficient number, since it is larger than the sum of its proper divisors (1345191343).

30939400337 is a wasteful number, since it uses less digits than its factorization.

30939400337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345191342.

The product of its (nonzero) digits is 183708, while the sum is 41.

The spelling of 30939400337 in words is "thirty billion, nine hundred thirty-nine million, four hundred thousand, three hundred thirty-seven".