1640376714 has 8 divisors (see below), whose sum is σ = 3280753440. Its totient is φ = 546792236.

The previous prime is 1640376707. The next prime is 1640376719. The reversal of 1640376714 is 4176730461.

It is a sphenic number, since it is the product of 3 distinct primes.

1640376714 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1640376719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136698054 + ... + 136698065.

It is an arithmetic number, because the mean of its divisors is an integer number (410094180).

Almost surely, 2^1640376714 is an apocalyptic number.

1640376714 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1640376714 is a wasteful number, since it uses less digits than its factorization.

1640376714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273396124.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 1640376714 is about 40501.5643401585. The cubic root of 1640376714 is about 1179.3639955763.

The spelling of 1640376714 in words is "one billion, six hundred forty million, three hundred seventy-six thousand, seven hundred fourteen".