1640761414 has 8 divisors (see below), whose sum is σ = 2461314240. Its totient is φ = 820323336.

The previous prime is 1640761403. The next prime is 1640761429. The reversal of 1640761414 is 4141670461.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1640761414.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39072 + ... + 69340.

It is an arithmetic number, because the mean of its divisors is an integer number (307664280).

Almost surely, 2^1640761414 is an apocalyptic number.

1640761414 is a deficient number, since it is larger than the sum of its proper divisors (820552826).

1640761414 is a wasteful number, since it uses less digits than its factorization.

1640761414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57374.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 1640761414 is about 40506.3132610214. The cubic root of 1640761414 is about 1179.4561829100.

The spelling of 1640761414 in words is "one billion, six hundred forty million, seven hundred sixty-one thousand, four hundred fourteen".