1238142 has 16 divisors (see below), whose sum is σ = 2534400. Its totient is φ = 403032.

The previous prime is 1238137. The next prime is 1238177. The reversal of 1238142 is 2418321.

It is a super-2 number, since 2×1238142² = 3065991224328, which contains 22 as substring.

It is a congruent 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, 2142 + ... + 2657.

It is an arithmetic number, because the mean of its divisors is an integer number (158400).

2^1238142 is an apocalyptic number.

1238142 is an abundant number, since it is smaller than the sum of its proper divisors (1296258).

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

1238142 is a wasteful number, since it uses less digits than its factorization.

1238142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4847.

The product of its digits is 384, while the sum is 21.

The square root of 1238142 is about 1112.7182931901. The cubic root of 1238142 is about 107.3800211824.

The spelling of 1238142 in words is "one million, two hundred thirty-eight thousand, one hundred forty-two".