4038140 has 12 divisors (see below), whose sum is σ = 8480136. Its totient is φ = 1615248.

The previous prime is 4038121. The next prime is 4038161. The reversal of 4038140 is 418304.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 201907 = 4038140 / (4 + 0 + 3 + 8 + 1 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100934 + ... + 100973.

It is an arithmetic number, because the mean of its divisors is an integer number (706678).

Almost surely, 2^4038140 is an apocalyptic number.

It is an amenable number.

4038140 is an abundant number, since it is smaller than the sum of its proper divisors (4441996).

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

4038140 is a wasteful number, since it uses less digits than its factorization.

4038140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201916 (or 201914 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4038140 is about 2009.5123786630. The cubic root of 4038140 is about 159.2430390441.

The spelling of 4038140 in words is "four million, thirty-eight thousand, one hundred forty".