1649941 has 8 divisors (see below), whose sum is σ = 1784480. Its totient is φ = 1520208.

The previous prime is 1649927. The next prime is 1649959. The reversal of 1649941 is 1499461.

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

It is a cyclic number.

It is not a de Polignac number, because 1649941 - 2⁹ = 1649429 is a prime.

It is the 1285-th Hogben number.

It is a junction number, because it is equal to n+sod(n) for n = 1649897 and 1649906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649981) by changing a digit.

It is a nontrivial repunit in base 1284.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471 + ... + 1876.

It is an arithmetic number, because the mean of its divisors is an integer number (223060).

2^1649941 is an apocalyptic number.

It is an amenable number.

1649941 is a deficient number, since it is larger than the sum of its proper divisors (134539).

1649941 is a wasteful number, since it uses less digits than its factorization.

1649941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403.

The product of its digits is 7776, while the sum is 34.

The square root of 1649941 is about 1284.5002919424. The cubic root of 1649941 is about 118.1651665799.

The spelling of 1649941 in words is "one million, six hundred forty-nine thousand, nine hundred forty-one".