30213223440 has 40 divisors (see below), whose sum is σ = 93660993408. Its totient is φ = 8056859520.

The previous prime is 30213223433. The next prime is 30213223451. The reversal of 30213223440 is 4432231203.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30213223440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62943976 + ... + 62944455.

Almost surely, 2^30213223440 is an apocalyptic number.

30213223440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30213223440 is an abundant number, since it is smaller than the sum of its proper divisors (63447769968).

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

30213223440 is a wasteful number, since it uses less digits than its factorization.

30213223440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125888447 (or 125888441 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 30213223440 its reverse (4432231203), we get a palindrome (34645454643).

The spelling of 30213223440 in words is "thirty billion, two hundred thirteen million, two hundred twenty-three thousand, four hundred forty".