1649688034 has 16 divisors (see below), whose sum is σ = 2665349280. Its totient is φ = 763257600.

The previous prime is 1649688023. The next prime is 1649688059. The reversal of 1649688034 is 4308869461.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503167 + ... + 506434.

It is an arithmetic number, because the mean of its divisors is an integer number (166584330).

Almost surely, 2^1649688034 is an apocalyptic number.

1649688034 is a deficient number, since it is larger than the sum of its proper divisors (1015661246).

1649688034 is a wasteful number, since it uses less digits than its factorization.

1649688034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009665.

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 1649688034 is about 40616.3518056460. The cubic root of 1649688034 is about 1181.5912731396.

The spelling of 1649688034 in words is "one billion, six hundred forty-nine million, six hundred eighty-eight thousand, thirty-four".