1491982 has 8 divisors (see below), whose sum is σ = 2243376. Its totient is φ = 744192.

The previous prime is 1491979. The next prime is 1491989. The reversal of 1491982 is 2891941.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491989) 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, 718 + ... + 1870.

It is an arithmetic number, because the mean of its divisors is an integer number (280422).

2^1491982 is an apocalyptic number.

1491982 is a deficient number, since it is larger than the sum of its proper divisors (751394).

1491982 is a wasteful number, since it uses less digits than its factorization.

1491982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802.

The product of its digits is 5184, while the sum is 34.

The square root of 1491982 is about 1221.4671506021. The cubic root of 1491982 is about 114.2670971162.

The spelling of 1491982 in words is "one million, four hundred ninety-one thousand, nine hundred eighty-two".