30421994 has 8 divisors (see below), whose sum is σ = 45913440. Its totient is φ = 15117516.

The previous prime is 30421991. The next prime is 30422003. The reversal of 30421994 is 49912403.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30421994.

It is not an unprimeable number, because it can be changed into a prime (30421991) 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 3 ways as a sum of consecutive naturals, for example, 46334 + ... + 46985.

It is an arithmetic number, because the mean of its divisors is an integer number (5739180).

Almost surely, 2^30421994 is an apocalyptic number.

30421994 is a deficient number, since it is larger than the sum of its proper divisors (15491446).

30421994 is a wasteful number, since it uses less digits than its factorization.

30421994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93484.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 30421994 is about 5515.6136557957. The cubic root of 30421994 is about 312.1733982992.

The spelling of 30421994 in words is "thirty million, four hundred twenty-one thousand, nine hundred ninety-four".