30469237920 has 288 divisors, whose sum is σ = 114134215104. Its totient is φ = 7340544000.

The previous prime is 30469237867. The next prime is 30469237927. The reversal of 30469237920 is 2973296403.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (30469237927) 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, 2576020 + ... + 2587820.

It is an arithmetic number, because the mean of its divisors is an integer number (396299358).

Almost surely, 2^30469237920 is an apocalyptic number.

30469237920 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 30469237920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57067107552).

30469237920 is an abundant number, since it is smaller than the sum of its proper divisors (83664977184).

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

30469237920 is a wasteful number, since it uses less digits than its factorization.

30469237920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11996 (or 11985 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The spelling of 30469237920 in words is "thirty billion, four hundred sixty-nine million, two hundred thirty-seven thousand, nine hundred twenty".