38012540 has 48 divisors (see below), whose sum is σ = 84672000. Its totient is φ = 14294592.

The previous prime is 38012539. The next prime is 38012549. The reversal of 38012540 is 4521083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38012549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63161 + ... + 63759.

It is an arithmetic number, because the mean of its divisors is an integer number (1764000).

Almost surely, 2^38012540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38012540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42336000).

38012540 is an abundant number, since it is smaller than the sum of its proper divisors (46659460).

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

38012540 is a wasteful number, since it uses less digits than its factorization.

38012540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 38012540 is about 6165.4310473802. The cubic root of 38012540 is about 336.2345183421.

The spelling of 38012540 in words is "thirty-eight million, twelve thousand, five hundred forty".