9439846380 has 192 divisors, whose sum is σ = 31422988800. Its totient is φ = 2345552640.

The previous prime is 9439846379. The next prime is 9439846397. The reversal of 9439846380 is 836489349.

It is a happy number.

9439846380 is a `hidden beast` number, since 94 + 3 + 98 + 463 + 8 + 0 = 666.

It is a super-2 number, since 2×9439846380² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 618319 + ... + 633401.

It is an arithmetic number, because the mean of its divisors is an integer number (163661400).

Almost surely, 2^9439846380 is an apocalyptic number.

9439846380 is a gapful number since it is divisible by the number (90) 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 9439846380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15711494400).

9439846380 is an abundant number, since it is smaller than the sum of its proper divisors (21983142420).

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

9439846380 is a wasteful number, since it uses less digits than its factorization.

9439846380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15181 (or 15173 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The square root of 9439846380 is about 97158.8718542985. The cubic root of 9439846380 is about 2113.4321462177.

The spelling of 9439846380 in words is "nine billion, four hundred thirty-nine million, eight hundred forty-six thousand, three hundred eighty".