1649768422 has 8 divisors (see below), whose sum is σ = 2483460072. Its totient is φ = 821948400.

The previous prime is 1649768413. The next prime is 1649768431. The reversal of 1649768422 is 2248679461.

It is an interprime number because it is at equal distance from previous prime (1649768413) and next prime (1649768431).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1467204 + ... + 1468327.

It is an arithmetic number, because the mean of its divisors is an integer number (310432509).

Almost surely, 2^1649768422 is an apocalyptic number.

1649768422 is a deficient number, since it is larger than the sum of its proper divisors (833691650).

1649768422 is a wasteful number, since it uses less digits than its factorization.

1649768422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935814.

The product of its digits is 1161216, while the sum is 49.

The square root of 1649768422 is about 40617.3413950249. The cubic root of 1649768422 is about 1181.6104654989.

The spelling of 1649768422 in words is "one billion, six hundred forty-nine million, seven hundred sixty-eight thousand, four hundred twenty-two".