1649284 has 48 divisors (see below), whose sum is σ = 3725568. Its totient is φ = 620928.

The previous prime is 1649267. The next prime is 1649287. The reversal of 1649284 is 4829461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8274 + ... + 8470.

It is an arithmetic number, because the mean of its divisors is an integer number (77616).

2^1649284 is an apocalyptic number.

1649284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1649284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1862784).

1649284 is an abundant number, since it is smaller than the sum of its proper divisors (2076284).

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

1649284 is a wasteful number, since it uses less digits than its factorization.

1649284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 242 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 1649284 is about 1284.2445250029. The cubic root of 1649284 is about 118.1494801965.

It can be divided in two parts, 16 and 49284, that multiplied together give a square (788544 = 888²).

The spelling of 1649284 in words is "one million, six hundred forty-nine thousand, two hundred eighty-four".