1438493 has 12 divisors (see below), whose sum is σ = 1729152. Its totient is φ = 1191960.

The previous prime is 1438483. The next prime is 1438501. The reversal of 1438493 is 3948341.

1438493 is nontrivially palindromic in base 6.

It is not a de Polignac number, because 1438493 - 2⁴ = 1438477 is a prime.

It is a super-2 number, since 2×1438493² = 4138524222098, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1046 + ... + 1992.

It is an arithmetic number, because the mean of its divisors is an integer number (144096).

2^1438493 is an apocalyptic number.

It is an amenable number.

1438493 is a deficient number, since it is larger than the sum of its proper divisors (290659).

1438493 is an equidigital number, since it uses as much as digits as its factorization.

1438493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992 (or 985 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 1438493 is about 1199.3719189643. The cubic root of 1438493 is about 112.8849169021.

The spelling of 1438493 in words is "one million, four hundred thirty-eight thousand, four hundred ninety-three".