1238427 has 12 divisors (see below), whose sum is σ = 1837680. Its totient is φ = 803088.

The previous prime is 1238423. The next prime is 1238429. The reversal of 1238427 is 7248321.

1238427 is a `hidden beast` number, since 1 + 238 + 427 = 666.

It is not a de Polignac number, because 1238427 - 2² = 1238423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1238427.

It is not an unprimeable number, because it can be changed into a prime (1238423) 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, 1527 + ... + 2192.

It is an arithmetic number, because the mean of its divisors is an integer number (153140).

2^1238427 is an apocalyptic number.

1238427 is a deficient number, since it is larger than the sum of its proper divisors (599253).

1238427 is a wasteful number, since it uses less digits than its factorization.

1238427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3762 (or 3759 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 1238427 is about 1112.8463505803. The cubic root of 1238427 is about 107.3882595907.

The spelling of 1238427 in words is "one million, two hundred thirty-eight thousand, four hundred twenty-seven".