30042021402 has 24 divisors (see below), whose sum is σ = 66007824480. Its totient is φ = 9872964360.

The previous prime is 30042021397. The next prime is 30042021403. The reversal of 30042021402 is 20412024003.

30042021402 is a `hidden beast` number, since 30 + 0 + 420 + 214 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30042021403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11752252 + ... + 11754807.

It is an arithmetic number, because the mean of its divisors is an integer number (2750326020).

Almost surely, 2^30042021402 is an apocalyptic number.

30042021402 is an abundant number, since it is smaller than the sum of its proper divisors (35965803078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30042021402 is a wasteful number, since it uses less digits than its factorization.

30042021402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23507138 (or 23507135 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 30042021402 its reverse (20412024003), we get a palindrome (50454045405).

The spelling of 30042021402 in words is "thirty billion, forty-two million, twenty-one thousand, four hundred two".