30442221340 has 24 divisors (see below), whose sum is σ = 65990881152. Its totient is φ = 11784085440.

The previous prime is 30442221319. The next prime is 30442221361. The reversal of 30442221340 is 4312224403.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30442221319) and next prime (30442221361).

It is a super-2 number, since 2×30442221340² (a number of 22 digits) contains 22 as substring.

It is a congruent 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, 24549559 + ... + 24550798.

It is an arithmetic number, because the mean of its divisors is an integer number (2749620048).

Almost surely, 2^30442221340 is an apocalyptic number.

It is an amenable number.

30442221340 is an abundant number, since it is smaller than the sum of its proper divisors (35548659812).

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

30442221340 is a wasteful number, since it uses less digits than its factorization.

30442221340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49100397 (or 49100395 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 30442221340 its reverse (4312224403), we get a palindrome (34754445743).

The spelling of 30442221340 in words is "thirty billion, four hundred forty-two million, two hundred twenty-one thousand, three hundred forty".