1418993 has 4 divisors (see below), whose sum is σ = 1440240. Its totient is φ = 1397748.

The previous prime is 1418983. The next prime is 1419001. The reversal of 1418993 is 3998141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3998141 = 7 ⋅571163.

It is a cyclic number.

It is not a de Polignac number, because 1418993 - 2¹⁸ = 1156849 is a prime.

It is a super-2 number, since 2×1418993² = 4027082268098, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1418953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10523 + ... + 10656.

It is an arithmetic number, because the mean of its divisors is an integer number (360060).

2^1418993 is an apocalyptic number.

It is an amenable number.

1418993 is a deficient number, since it is larger than the sum of its proper divisors (21247).

1418993 is an equidigital number, since it uses as much as digits as its factorization.

1418993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21246.

The product of its digits is 7776, while the sum is 35.

The square root of 1418993 is about 1191.2149260314. The cubic root of 1418993 is about 112.3725107229.

The spelling of 1418993 in words is "one million, four hundred eighteen thousand, nine hundred ninety-three".