1649912 has 16 divisors (see below), whose sum is σ = 3375000. Its totient is φ = 749920.

The previous prime is 1649887. The next prime is 1649917. The reversal of 1649912 is 2199461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649917) 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, 9287 + ... + 9462.

2^1649912 is an apocalyptic number.

It is an amenable number.

1649912 is an abundant number, since it is smaller than the sum of its proper divisors (1725088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1649912 is a wasteful number, since it uses less digits than its factorization.

1649912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18766 (or 18762 counting only the distinct ones).

The product of its digits is 3888, while the sum is 32.

The square root of 1649912 is about 1284.4890034562. The cubic root of 1649912 is about 118.1644742703.

The spelling of 1649912 in words is "one million, six hundred forty-nine thousand, nine hundred twelve".