4281138 has 24 divisors (see below), whose sum is σ = 9503676. Its totient is φ = 1392000.

The previous prime is 4281133. The next prime is 4281157. The reversal of 4281138 is 8311824.

It can be written as a sum of positive squares in 2 ways, for example, as 4272489 + 8649 = 2067^2 + 93^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4281133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2163 + ... + 3638.

Almost surely, 2^4281138 is an apocalyptic number.

4281138 is an abundant number, since it is smaller than the sum of its proper divisors (5222538).

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

4281138 is a wasteful number, since it uses less digits than its factorization.

4281138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5850 (or 5847 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 4281138 is about 2069.0911048091. The cubic root of 4281138 is about 162.3752162346.

It can be divided in two parts, 42811 and 38, that added together give a square (42849 = 207²).

The spelling of 4281138 in words is "four million, two hundred eighty-one thousand, one hundred thirty-eight".