30104939 has 4 divisors (see below), whose sum is σ = 30918624. Its totient is φ = 29291256.

The previous prime is 30104933. The next prime is 30104989. The reversal of 30104939 is 93940103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93940103 = 191 ⋅491833.

It is a cyclic number.

It is not a de Polignac number, because 30104939 - 2²⁴ = 13327723 is a prime.

It is a super-4 number, since 4×30104939⁴ (a number of 31 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30104933) 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, 406787 + ... + 406860.

It is an arithmetic number, because the mean of its divisors is an integer number (7729656).

Almost surely, 2^30104939 is an apocalyptic number.

30104939 is a deficient number, since it is larger than the sum of its proper divisors (813685).

30104939 is an equidigital number, since it uses as much as digits as its factorization.

30104939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813684.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 30104939 is about 5486.7967886555. The cubic root of 30104939 is about 311.0851288345.

The spelling of 30104939 in words is "thirty million, one hundred four thousand, nine hundred thirty-nine".