30302440432 has 80 divisors (see below), whose sum is σ = 68377168224. Its totient is φ = 12963456000.

The previous prime is 30302440423. The next prime is 30302440439. The reversal of 30302440432 is 23404420303.

It is a super-2 number, since 2×30302440432² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30302440397 and 30302440406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30302440439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320182 + ... + 403882.

Almost surely, 2^30302440432 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 30302440432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34188584112).

30302440432 is an abundant number, since it is smaller than the sum of its proper divisors (38074727792).

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

30302440432 is a wasteful number, since it uses less digits than its factorization.

30302440432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83759 (or 83731 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 30302440432 its reverse (23404420303), we get a palindrome (53706860735).

The spelling of 30302440432 in words is "thirty billion, three hundred two million, four hundred forty thousand, four hundred thirty-two".