1139442 has 16 divisors (see below), whose sum is σ = 2413152. Its totient is φ = 357440.

The previous prime is 1139423. The next prime is 1139461. The reversal of 1139442 is 2449311.

It is an interprime number because it is at equal distance from previous prime (1139423) and next prime (1139461).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5484 + ... + 5687.

It is an arithmetic number, because the mean of its divisors is an integer number (150822).

2^1139442 is an apocalyptic number.

1139442 is an abundant number, since it is smaller than the sum of its proper divisors (1273710).

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

1139442 is a wasteful number, since it uses less digits than its factorization.

1139442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11193.

The product of its digits is 864, while the sum is 24.

The square root of 1139442 is about 1067.4464857781. The cubic root of 1139442 is about 104.4473457102.

The spelling of 1139442 in words is "one million, one hundred thirty-nine thousand, four hundred forty-two".