1649236193 has 8 divisors (see below), whose sum is σ = 1843049376. Its totient is φ = 1462736800.

The previous prime is 1649236109. The next prime is 1649236207. The reversal of 1649236193 is 3916329461.

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 1649236193 - 2¹⁸ = 1648974049 is a prime.

It is a super-2 number, since 2×1649236193² = 5439960040602266498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1649236093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1827971 + ... + 1828872.

It is an arithmetic number, because the mean of its divisors is an integer number (230381172).

Almost surely, 2^1649236193 is an apocalyptic number.

It is an amenable number.

1649236193 is a deficient number, since it is larger than the sum of its proper divisors (193813183).

1649236193 is a wasteful number, since it uses less digits than its factorization.

1649236193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656895.

The product of its digits is 209952, while the sum is 44.

The square root of 1649236193 is about 40610.7891206266. The cubic root of 1649236193 is about 1181.4833860478.

The spelling of 1649236193 in words is "one billion, six hundred forty-nine million, two hundred thirty-six thousand, one hundred ninety-three".