30421402 has 16 divisors (see below), whose sum is σ = 50277024. Its totient is φ = 13690000.

The previous prime is 30421373. The next prime is 30421411. The reversal of 30421402 is 20412403.

It is an unprimeable number.

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, 4624 + ... + 9067.

It is an arithmetic number, because the mean of its divisors is an integer number (3142314).

Almost surely, 2^30421402 is an apocalyptic number.

30421402 is a deficient number, since it is larger than the sum of its proper divisors (19855622).

30421402 is a wasteful number, since it uses less digits than its factorization.

30421402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13805.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 30421402 is about 5515.5599897019. The cubic root of 30421402 is about 312.1713733623.

Adding to 30421402 its reverse (20412403), we get a palindrome (50833805).

It can be divided in two parts, 3042 and 1402, that added together give a palindrome (4444).

The spelling of 30421402 in words is "thirty million, four hundred twenty-one thousand, four hundred two".