30428399233620 has 144 divisors (see below), whose sum is σ = 93280303771200. Its totient is φ = 8028065875968.

The previous prime is 30428399233571. The next prime is 30428399233627. The reversal of 30428399233620 is 2633299382403.

It is a happy number.

30428399233620 is a `hidden beast` number, since 3 + 0 + 4 + 2 + 8 + 3 + 9 + 9 + 2 + 3 + 3 + 620 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30428399233627) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55652331 + ... + 56196429.

It is an arithmetic number, because the mean of its divisors is an integer number (647779887300).

Almost surely, 2^{30428399233620} is an apocalyptic number.

30428399233620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30428399233620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46640151885600).

30428399233620 is an abundant number, since it is smaller than the sum of its proper divisors (62851904537580).

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

30428399233620 is a wasteful number, since it uses less digits than its factorization.

30428399233620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547414 (or 547409 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 54.

The spelling of 30428399233620 in words is "thirty trillion, four hundred twenty-eight billion, three hundred ninety-nine million, two hundred thirty-three thousand, six hundred twenty".