1418021 has 8 divisors (see below), whose sum is σ = 1638144. Its totient is φ = 1213120.

The previous prime is 1418009. The next prime is 1418023. The reversal of 1418021 is 1208141.

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

It is not a de Polignac number, because 1418021 - 2¹⁰ = 1416997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1418023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3605 + ... + 3978.

It is an arithmetic number, because the mean of its divisors is an integer number (204768).

2^1418021 is an apocalyptic number.

1418021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1418021 is a deficient number, since it is larger than the sum of its proper divisors (220123).

1418021 is a wasteful number, since it uses less digits than its factorization.

1418021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7611.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1418021 is about 1190.8068693117. The cubic root of 1418021 is about 112.3468467416.

The spelling of 1418021 in words is "one million, four hundred eighteen thousand, twenty-one".