30342440000 has 70 divisors (see below), whose sum is σ = 75239489094. Its totient is φ = 12136960000.

The previous prime is 30342439973. The next prime is 30342440003. The reversal of 30342440000 is 4424303.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 7840039936 + 22502400064 = 88544^2 + 150008^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (30342440003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 339281 + ... + 419280.

Almost surely, 2^30342440000 is an apocalyptic number.

It is an amenable number.

30342440000 is an abundant number, since it is smaller than the sum of its proper divisors (44897049094).

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

30342440000 is an frugal number, since it uses more digits than its factorization.

30342440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758593 (or 758568 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 30342440000 its reverse (4424303), we get a palindrome (30346864303).

The spelling of 30342440000 in words is "thirty billion, three hundred forty-two million, four hundred forty thousand".