1649918150 has 12 divisors (see below), whose sum is σ = 3068847852. Its totient is φ = 659967240.

The previous prime is 1649918147. The next prime is 1649918167. The reversal of 1649918150 is 518199461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16499132 + ... + 16499231.

It is an arithmetic number, because the mean of its divisors is an integer number (255737321).

Almost surely, 2^1649918150 is an apocalyptic number.

1649918150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1649918150 is a deficient number, since it is larger than the sum of its proper divisors (1418929702).

1649918150 is a wasteful number, since it uses less digits than its factorization.

1649918150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32998375 (or 32998370 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 44.

The square root of 1649918150 is about 40619.1845068313. The cubic root of 1649918150 is about 1181.6462108835.

The spelling of 1649918150 in words is "one billion, six hundred forty-nine million, nine hundred eighteen thousand, one hundred fifty".