30222174640 has 80 divisors (see below), whose sum is σ = 80328483648. Its totient is φ = 10358811648.

The previous prime is 30222174617. The next prime is 30222174641. The reversal of 30222174640 is 4647122203.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (30222174641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2689674 + ... + 2700886.

Almost surely, 2^30222174640 is an apocalyptic number.

It is an amenable number.

30222174640 is an abundant number, since it is smaller than the sum of its proper divisors (50106309008).

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

30222174640 is a wasteful number, since it uses less digits than its factorization.

30222174640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16046 (or 16040 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 30222174640 its reverse (4647122203), we get a palindrome (34869296843).

The spelling of 30222174640 in words is "thirty billion, two hundred twenty-two million, one hundred seventy-four thousand, six hundred forty".