1639905014 has 24 divisors (see below), whose sum is σ = 2821376880. Its totient is φ = 712999760.

The previous prime is 1639905013. The next prime is 1639905031. The reversal of 1639905014 is 4105099361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1639905013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141749 + ... + 152880.

It is an arithmetic number, because the mean of its divisors is an integer number (117557370).

Almost surely, 2^1639905014 is an apocalyptic number.

1639905014 is a deficient number, since it is larger than the sum of its proper divisors (1181471866).

1639905014 is a wasteful number, since it uses less digits than its factorization.

1639905014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294676 (or 294665 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 1639905014 is about 40495.7406896083. The cubic root of 1639905014 is about 1179.2509403813.

The spelling of 1639905014 in words is "one billion, six hundred thirty-nine million, nine hundred five thousand, fourteen".