1649373902 has 8 divisors (see below), whose sum is σ = 2698975512. Its totient is φ = 749715400.

The previous prime is 1649373893. The next prime is 1649373911. The reversal of 1649373902 is 2093739461.

It is an interprime number because it is at equal distance from previous prime (1649373893) and next prime (1649373911).

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37485749 + ... + 37485792.

It is an arithmetic number, because the mean of its divisors is an integer number (337371939).

Almost surely, 2^1649373902 is an apocalyptic number.

1649373902 is a deficient number, since it is larger than the sum of its proper divisors (1049601610).

1649373902 is a wasteful number, since it uses less digits than its factorization.

1649373902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74971554.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 1649373902 is about 40612.4845583227. The cubic root of 1649373902 is about 1181.5162692229.

The spelling of 1649373902 in words is "one billion, six hundred forty-nine million, three hundred seventy-three thousand, nine hundred two".