1649443495 has 8 divisors (see below), whose sum is σ = 2262093984. Its totient is φ = 1131046944.

The previous prime is 1649443483. The next prime is 1649443501. The reversal of 1649443495 is 5943449461.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1649443495 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23563444 + ... + 23563513.

It is an arithmetic number, because the mean of its divisors is an integer number (282761748).

Almost surely, 2^1649443495 is an apocalyptic number.

1649443495 is a deficient number, since it is larger than the sum of its proper divisors (612650489).

1649443495 is an equidigital number, since it uses as much as digits as its factorization.

1649443495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47126969.

The product of its digits is 1866240, while the sum is 49.

The square root of 1649443495 is about 40613.3413424702. The cubic root of 1649443495 is about 1181.5328864587.

The spelling of 1649443495 in words is "one billion, six hundred forty-nine million, four hundred forty-three thousand, four hundred ninety-five".