1989496 has 16 divisors (see below), whose sum is σ = 3745440. Its totient is φ = 990720.

The previous prime is 1989479. The next prime is 1989499. The reversal of 1989496 is 6949891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1989499) 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 3 ways as a sum of consecutive naturals, for example, 3160 + ... + 3736.

It is an arithmetic number, because the mean of its divisors is an integer number (234090).

2^1989496 is an apocalyptic number.

It is an amenable number.

1989496 is a deficient number, since it is larger than the sum of its proper divisors (1755944).

1989496 is a wasteful number, since it uses less digits than its factorization.

1989496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014 (or 1010 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 1989496 is about 1410.4949485907. The cubic root of 1989496 is about 125.7711475355.

It can be divided in two parts, 1989 and 496, that added together give a triangular number (2485 = T₇₀).

The spelling of 1989496 in words is "one million, nine hundred eighty-nine thousand, four hundred ninety-six".