2642208387 has 64 divisors (see below), whose sum is σ = 4518097920. Its totient is φ = 1336320000.

The previous prime is 2642208347. The next prime is 2642208403. The reversal of 2642208387 is 7838022462.

It is not a de Polignac number, because 2642208387 - 2¹¹ = 2642206339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2642208347) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 658387 + ... + 662387.

It is an arithmetic number, because the mean of its divisors is an integer number (70595280).

Almost surely, 2^2642208387 is an apocalyptic number.

2642208387 is a deficient number, since it is larger than the sum of its proper divisors (1875889533).

2642208387 is a wasteful number, since it uses less digits than its factorization.

2642208387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124.

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 2642208387 is about 51402.4161591651. The cubic root of 2642208387 is about 1382.4699145756.

The spelling of 2642208387 in words is "two billion, six hundred forty-two million, two hundred eight thousand, three hundred eighty-seven".