1138742 has 16 divisors (see below), whose sum is σ = 1880064. Its totient is φ = 513000.

The previous prime is 1138741. The next prime is 1138751. The reversal of 1138742 is 2478311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4067 + ... + 4337.

It is an arithmetic number, because the mean of its divisors is an integer number (117504).

2^1138742 is an apocalyptic number.

1138742 is a deficient number, since it is larger than the sum of its proper divisors (741322).

1138742 is a wasteful number, since it uses less digits than its factorization.

1138742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475.

The product of its digits is 1344, while the sum is 26.

The square root of 1138742 is about 1067.1185501152. The cubic root of 1138742 is about 104.4259527479.

The spelling of 1138742 in words is "one million, one hundred thirty-eight thousand, seven hundred forty-two".