30502213235440 has 40 divisors (see below), whose sum is σ = 70946698928688. Its totient is φ = 12195886901760.

The previous prime is 30502213235401. The next prime is 30502213235569. The reversal of 30502213235440 is 4453231220503.

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

It is a super-2 number, since 2×30502213235440² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30502213235396 and 30502213235405.

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, 77903382 + ... + 78293941.

Almost surely, 2^{30502213235440} is an apocalyptic number.

It is an amenable number.

30502213235440 is an abundant number, since it is smaller than the sum of its proper divisors (40444485693248).

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

30502213235440 is a wasteful number, since it uses less digits than its factorization.

30502213235440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156199777 (or 156199771 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 30502213235440 its reverse (4453231220503), we get a palindrome (34955444455943).

The spelling of 30502213235440 in words is "thirty trillion, five hundred two billion, two hundred thirteen million, two hundred thirty-five thousand, four hundred forty".