38938847040 has 224 divisors, whose sum is σ = 141799787520. Its totient is φ = 10048665600.

The previous prime is 38938847011. The next prime is 38938847063. The reversal of 38938847040 is 4074883983.

38938847040 is a `hidden beast` number, since 3 + 8 + 93 + 88 + 470 + 4 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195150 + ... + 340530.

Almost surely, 2^38938847040 is an apocalyptic number.

38938847040 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 38938847040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70899893760).

38938847040 is an abundant number, since it is smaller than the sum of its proper divisors (102860940480).

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

38938847040 is a wasteful number, since it uses less digits than its factorization.

38938847040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145438 (or 145422 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 38938847040 in words is "thirty-eight billion, nine hundred thirty-eight million, eight hundred forty-seven thousand, forty".