30402042 has 16 divisors (see below), whose sum is σ = 66331872. Its totient is φ = 9212720.

The previous prime is 30402023. The next prime is 30402077. The reversal of 30402042 is 24020403.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230253 + ... + 230384.

It is an arithmetic number, because the mean of its divisors is an integer number (4145742).

Almost surely, 2^30402042 is an apocalyptic number.

30402042 is an abundant number, since it is smaller than the sum of its proper divisors (35929830).

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

30402042 is a wasteful number, since it uses less digits than its factorization.

30402042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460653.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 30402042 is about 5513.8046755394. The cubic root of 30402042 is about 312.1051379722.

Adding to 30402042 its reverse (24020403), we get a palindrome (54422445).

The spelling of 30402042 in words is "thirty million, four hundred two thousand, forty-two".