1649332441 has 2 divisors, whose sum is σ = 1649332442. Its totient is φ = 1649332440.

The previous prime is 1649332393. The next prime is 1649332471. The reversal of 1649332441 is 1442339461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1588819600 + 60512841 = 39860^2 + 7779^2 .

It is a cyclic number.

It is not a de Polignac number, because 1649332441 - 2¹⁷ = 1649201369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1649332441.

It is not a weakly prime, because it can be changed into another prime (1649332471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 824666220 + 824666221.

It is an arithmetic number, because the mean of its divisors is an integer number (824666221).

Almost surely, 2^1649332441 is an apocalyptic number.

It is an amenable number.

1649332441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1649332441 is an equidigital number, since it uses as much as digits as its factorization.

1649332441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 37.

The square root of 1649332441 is about 40611.9741086296. The cubic root of 1649332441 is about 1181.5063690508.

The spelling of 1649332441 in words is "one billion, six hundred forty-nine million, three hundred thirty-two thousand, four hundred forty-one".