1438142 has 4 divisors (see below), whose sum is σ = 2157216. Its totient is φ = 719070.

The previous prime is 1438123. The next prime is 1438159. The reversal of 1438142 is 2418341.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359534 + ... + 359537.

It is an arithmetic number, because the mean of its divisors is an integer number (539304).

2^1438142 is an apocalyptic number.

1438142 is a deficient number, since it is larger than the sum of its proper divisors (719074).

1438142 is an equidigital number, since it uses as much as digits as its factorization.

1438142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719073.

The product of its digits is 768, while the sum is 23.

The square root of 1438142 is about 1199.2255834496. The cubic root of 1438142 is about 112.8757346470.

The spelling of 1438142 in words is "one million, four hundred thirty-eight thousand, one hundred forty-two".