4011138 has 12 divisors (see below), whose sum is σ = 8690838. Its totient is φ = 1337040.

The previous prime is 4011127. The next prime is 4011157. The reversal of 4011138 is 8311104.

It can be written as a sum of positive squares in only one way, i.e., 3359889 + 651249 = 1833^2 + 807^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 222841 = 4011138 / (4 + 0 + 1 + 1 + 1 + 3 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 4011138.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111403 + ... + 111438.

Almost surely, 2^4011138 is an apocalyptic number.

4011138 is an abundant number, since it is smaller than the sum of its proper divisors (4679700).

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

4011138 is a wasteful number, since it uses less digits than its factorization.

4011138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222849 (or 222846 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 4011138 is about 2002.7825643339. The cubic root of 4011138 is about 158.8873059287.

The spelling of 4011138 in words is "four million, eleven thousand, one hundred thirty-eight".