2196405387 has 24 divisors (see below), whose sum is σ = 3478425600. Its totient is φ = 1324453680.

The previous prime is 2196405361. The next prime is 2196405403. The reversal of 2196405387 is 7835046912.

2196405387 is a `hidden beast` number, since 21 + 96 + 4 + 0 + 538 + 7 = 666.

2196405387 is digitally balanced in base 2 and base 10, because in such bases it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-2196405387 is a prime.

2196405387 is strictly pandigital in base 10.

It is not an unprimeable number, because it can be changed into a prime (2196405787) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36043 + ... + 75444.

It is an arithmetic number, because the mean of its divisors is an integer number (144934400).

It is a 1-persistent number, because it is pandigital, but 2⋅2196405387 = 4392810774 is not.

Almost surely, 2^2196405387 is an apocalyptic number.

2196405387 is a deficient number, since it is larger than the sum of its proper divisors (1282020213).

2196405387 is a wasteful number, since it uses less digits than its factorization.

2196405387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111703 (or 111700 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2196405387 is about 46865.8232297268. The cubic root of 2196405387 is about 1299.8827087472.

The spelling of 2196405387 in words is "two billion, one hundred ninety-six million, four hundred five thousand, three hundred eighty-seven".