2140648405 has 8 divisors (see below), whose sum is σ = 2935746432. Its totient is φ = 1467873168.

The previous prime is 2140648397. The next prime is 2140648409. The reversal of 2140648405 is 5048460412.

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

It is a cyclic number.

It is not a de Polignac number, because 2140648405 - 2³ = 2140648397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140648409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30580657 + ... + 30580726.

It is an arithmetic number, because the mean of its divisors is an integer number (366968304).

Almost surely, 2^2140648405 is an apocalyptic number.

It is an amenable number.

2140648405 is a deficient number, since it is larger than the sum of its proper divisors (795098027).

2140648405 is an equidigital number, since it uses as much as digits as its factorization.

2140648405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61161395.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 2140648405 is about 46267.1417422775. The cubic root of 2140648405 is about 1288.7888809214.

The spelling of 2140648405 in words is "two billion, one hundred forty million, six hundred forty-eight thousand, four hundred five".