1640360414 has 64 divisors (see below), whose sum is σ = 3223314432. Its totient is φ = 607068000.

The previous prime is 1640360401. The next prime is 1640360419. The reversal of 1640360414 is 4140630461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1640360419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 533309 + ... + 536375.

It is an arithmetic number, because the mean of its divisors is an integer number (50364288).

Almost surely, 2^1640360414 is an apocalyptic number.

1640360414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1640360414 is a deficient number, since it is larger than the sum of its proper divisors (1582954018).

1640360414 is a wasteful number, since it uses less digits than its factorization.

1640360414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1640360414 is about 40501.3631128633. The cubic root of 1640360414 is about 1179.3600892182.

Adding to 1640360414 its reverse (4140630461), we get a palindrome (5780990875).

The spelling of 1640360414 in words is "one billion, six hundred forty million, three hundred sixty thousand, four hundred fourteen".