30214220240 has 80 divisors (see below), whose sum is σ = 71025596928. Its totient is φ = 11952396288.

The previous prime is 30214220221. The next prime is 30214220251. The reversal of 30214220240 is 4202241203.

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

It is a super-2 number, since 2×30214220240² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4399049 + ... + 4405911.

Almost surely, 2^30214220240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30214220240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35512798464).

30214220240 is an abundant number, since it is smaller than the sum of its proper divisors (40811376688).

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

30214220240 is a wasteful number, since it uses less digits than its factorization.

30214220240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7476 (or 7470 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 30214220240 its reverse (4202241203), we get a palindrome (34416461443).

The spelling of 30214220240 in words is "thirty billion, two hundred fourteen million, two hundred twenty thousand, two hundred forty".