1649122 has 8 divisors (see below), whose sum is σ = 2495916. Its totient is φ = 817152.

The previous prime is 1649111. The next prime is 1649129. The reversal of 1649122 is 2219461.

It can be written as a sum of positive squares in 2 ways, for example, as 1390041 + 259081 = 1179^2 + 509^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1649129) 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, 3423 + ... + 3874.

2^1649122 is an apocalyptic number.

1649122 is a deficient number, since it is larger than the sum of its proper divisors (846794).

1649122 is a wasteful number, since it uses less digits than its factorization.

1649122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7412.

The product of its digits is 864, while the sum is 25.

The square root of 1649122 is about 1284.1814513534. The cubic root of 1649122 is about 118.1456116809.

It can be divided in two parts, 1649 and 122, that added together give a palindrome (1771).

The spelling of 1649122 in words is "one million, six hundred forty-nine thousand, one hundred twenty-two".