1491442 has 8 divisors (see below), whose sum is σ = 2246832. Its totient is φ = 742500.

The previous prime is 1491439. The next prime is 1491449. The reversal of 1491442 is 2441941.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1491449) 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 3 ways as a sum of consecutive naturals, for example, 984 + ... + 1987.

It is an arithmetic number, because the mean of its divisors is an integer number (280854).

2^1491442 is an apocalyptic number.

1491442 is a deficient number, since it is larger than the sum of its proper divisors (755390).

1491442 is a wasteful number, since it uses less digits than its factorization.

1491442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224.

The product of its digits is 1152, while the sum is 25.

The square root of 1491442 is about 1221.2460849477. The cubic root of 1491442 is about 114.2533097117.

The spelling of 1491442 in words is "one million, four hundred ninety-one thousand, four hundred forty-two".