38324120640 has 224 divisors, whose sum is σ = 131471066496. Its totient is φ = 9402531840.

The previous prime is 38324120579. The next prime is 38324120647. The reversal of 38324120640 is 4602142383.

It is not an unprimeable number, because it can be changed into a prime (38324120647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3901335 + ... + 3911145.

It is an arithmetic number, because the mean of its divisors is an integer number (586924404).

Almost surely, 2^38324120640 is an apocalyptic number.

38324120640 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 38324120640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65735533248).

38324120640 is an abundant number, since it is smaller than the sum of its proper divisors (93146945856).

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

38324120640 is a wasteful number, since it uses less digits than its factorization.

38324120640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10157 (or 10147 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 38324120640 in words is "thirty-eight billion, three hundred twenty-four million, one hundred twenty thousand, six hundred forty".