38488140 has 72 divisors (see below), whose sum is σ = 119923440. Its totient is φ = 9984384.

The previous prime is 38488117. The next prime is 38488141. The reversal of 38488140 is 4188483.

38488140 is a `hidden beast` number, since 38 + 488 + 140 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 38488095 and 38488104.

It is not an unprimeable number, because it can be changed into a prime (38488141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3771 + ... + 9549.

Almost surely, 2^38488140 is an apocalyptic number.

38488140 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 38488140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59961720).

38488140 is an abundant number, since it is smaller than the sum of its proper divisors (81435300).

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

38488140 is a wasteful number, since it uses less digits than its factorization.

38488140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5831 (or 5826 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 38488140 is about 6203.8810433470. The cubic root of 38488140 is about 337.6309944178.

The spelling of 38488140 in words is "thirty-eight million, four hundred eighty-eight thousand, one hundred forty".