1427018 has 4 divisors (see below), whose sum is σ = 2140530. Its totient is φ = 713508.

The previous prime is 1427017. The next prime is 1427021. The reversal of 1427018 is 8107241.

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

It can be written as a sum of positive squares in only one way, i.e., 1075369 + 351649 = 1037^2 + 593^2 .

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1426984 and 1427002.

It is not an unprimeable number, because it can be changed into a prime (1427017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356753 + ... + 356756.

2^1427018 is an apocalyptic number.

1427018 is a deficient number, since it is larger than the sum of its proper divisors (713512).

1427018 is an equidigital number, since it uses as much as digits as its factorization.

1427018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713511.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1427018 is about 1194.5785867828. The cubic root of 1427018 is about 112.5839505070.

The spelling of 1427018 in words is "one million, four hundred twenty-seven thousand, eighteen".