30442041040 has 20 divisors (see below), whose sum is σ = 70777745604. Its totient is φ = 12176816384.

The previous prime is 30442041031. The next prime is 30442041041. The reversal of 30442041040 is 4014024403.

It can be written as a sum of positive squares in 2 ways, for example, as 11027520144 + 19414520896 = 105012^2 + 139336^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30442041041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190262677 + ... + 190262836.

Almost surely, 2^30442041040 is an apocalyptic number.

It is an amenable number.

30442041040 is an abundant number, since it is smaller than the sum of its proper divisors (40335704564).

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

30442041040 is a wasteful number, since it uses less digits than its factorization.

30442041040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380525526 (or 380525520 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 30442041040 its reverse (4014024403), we get a palindrome (34456065443).

The spelling of 30442041040 in words is "thirty billion, four hundred forty-two million, forty-one thousand, forty".