1418421 has 8 divisors (see below), whose sum is σ = 1897344. Its totient is φ = 942560.

The previous prime is 1418399. The next prime is 1418423. The reversal of 1418421 is 1248141.

It is a happy number.

1418421 is nontrivially palindromic in base 2.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1418421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1418423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 745 + ... + 1841.

It is an arithmetic number, because the mean of its divisors is an integer number (237168).

2^1418421 is an apocalyptic number.

It is an amenable number.

1418421 is a deficient number, since it is larger than the sum of its proper divisors (478923).

1418421 is a wasteful number, since it uses less digits than its factorization.

1418421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531.

The product of its digits is 256, while the sum is 21.

The square root of 1418421 is about 1190.9748108168. The cubic root of 1418421 is about 112.3574094704.

The spelling of 1418421 in words is "one million, four hundred eighteen thousand, four hundred twenty-one".