1494638 has 4 divisors (see below), whose sum is σ = 2241960. Its totient is φ = 747318.

The previous prime is 1494617. The next prime is 1494641. The reversal of 1494638 is 8364941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8364941 = 13 ⋅643457.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1494598 and 1494607.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 373658 + ... + 373661.

It is an arithmetic number, because the mean of its divisors is an integer number (560490).

2^1494638 is an apocalyptic number.

1494638 is a deficient number, since it is larger than the sum of its proper divisors (747322).

1494638 is an equidigital number, since it uses as much as digits as its factorization.

1494638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747321.

The product of its digits is 20736, while the sum is 35.

The square root of 1494638 is about 1222.5538842930. The cubic root of 1494638 is about 114.3348623432.

The spelling of 1494638 in words is "one million, four hundred ninety-four thousand, six hundred thirty-eight".