1640237014 has 32 divisors (see below), whose sum is σ = 2683961280. Its totient is φ = 747273600.

The previous prime is 1640236999. The next prime is 1640237033. The reversal of 1640237014 is 4107320461.

It is a congruent 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, 880444 + ... + 882304.

It is an arithmetic number, because the mean of its divisors is an integer number (83873790).

Almost surely, 2^1640237014 is an apocalyptic number.

1640237014 is a deficient number, since it is larger than the sum of its proper divisors (1043724266).

1640237014 is a wasteful number, since it uses less digits than its factorization.

1640237014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1640237014 is about 40499.8396786950. The cubic root of 1640237014 is about 1179.3305150906.

Adding to 1640237014 its reverse (4107320461), we get a palindrome (5747557475).

The spelling of 1640237014 in words is "one billion, six hundred forty million, two hundred thirty-seven thousand, fourteen".