30421039 has 8 divisors (see below), whose sum is σ = 33270480. Its totient is φ = 27585600.

The previous prime is 30421031. The next prime is 30421051. The reversal of 30421039 is 93012403.

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

It is a cyclic number.

It is not a de Polignac number, because 30421039 - 2³ = 30421031 is a prime.

It is a super-2 number, since 2×30421039² = 1850879227679042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30421031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1347 + ... + 7915.

It is an arithmetic number, because the mean of its divisors is an integer number (4158810).

Almost surely, 2^30421039 is an apocalyptic number.

30421039 is a deficient number, since it is larger than the sum of its proper divisors (2849441).

30421039 is a wasteful number, since it uses less digits than its factorization.

30421039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7001.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 30421039 is about 5515.5270827003. The cubic root of 30421039 is about 312.1701317073.

The spelling of 30421039 in words is "thirty million, four hundred twenty-one thousand, thirty-nine".