1427818 has 8 divisors (see below), whose sum is σ = 2447712. Its totient is φ = 611916.

The previous prime is 1427809. The next prime is 1427821. The reversal of 1427818 is 8187241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1427818² = 4077328482248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1427818.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50980 + ... + 51007.

It is an arithmetic number, because the mean of its divisors is an integer number (305964).

2^1427818 is an apocalyptic number.

1427818 is a deficient number, since it is larger than the sum of its proper divisors (1019894).

1427818 is a wasteful number, since it uses less digits than its factorization.

1427818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101996.

The product of its digits is 3584, while the sum is 31.

The square root of 1427818 is about 1194.9133859824. The cubic root of 1427818 is about 112.6049851249.

The spelling of 1427818 in words is "one million, four hundred twenty-seven thousand, eight hundred eighteen".