30442155334 has 4 divisors (see below), whose sum is σ = 45663233004. Its totient is φ = 15221077666.

The previous prime is 30442155329. The next prime is 30442155389. The reversal of 30442155334 is 43355124403.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30442155334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7610538832 + ... + 7610538835.

It is an arithmetic number, because the mean of its divisors is an integer number (11415808251).

Almost surely, 2^30442155334 is an apocalyptic number.

30442155334 is a deficient number, since it is larger than the sum of its proper divisors (15221077670).

30442155334 is a wasteful number, since it uses less digits than its factorization.

30442155334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15221077669.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 30442155334 its reverse (43355124403), we get a palindrome (73797279737).

The spelling of 30442155334 in words is "thirty billion, four hundred forty-two million, one hundred fifty-five thousand, three hundred thirty-four".