1649485338 has 32 divisors (see below), whose sum is σ = 3336584832. Its totient is φ = 543576000.

The previous prime is 1649485267. The next prime is 1649485349. The reversal of 1649485338 is 8335849461.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515323 + ... + 518513.

It is an arithmetic number, because the mean of its divisors is an integer number (104268276).

Almost surely, 2^1649485338 is an apocalyptic number.

1649485338 is an abundant number, since it is smaller than the sum of its proper divisors (1687099494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1649485338 is a wasteful number, since it uses less digits than its factorization.

1649485338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150.

The product of its digits is 2488320, while the sum is 51.

The square root of 1649485338 is about 40613.8564778082. The cubic root of 1649485338 is about 1181.5428773966.

The spelling of 1649485338 in words is "one billion, six hundred forty-nine million, four hundred eighty-five thousand, three hundred thirty-eight".