2620194387 has 8 divisors (see below), whose sum is σ = 3494502336. Its totient is φ = 1746341352.

The previous prime is 2620194383. The next prime is 2620194403. The reversal of 2620194387 is 7834910262.

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

It is not a de Polignac number, because 2620194387 - 2² = 2620194383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2620194383) 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, 100053 + ... + 123494.

It is an arithmetic number, because the mean of its divisors is an integer number (436812792).

Almost surely, 2^2620194387 is an apocalyptic number.

2620194387 is a deficient number, since it is larger than the sum of its proper divisors (874307949).

2620194387 is a wasteful number, since it uses less digits than its factorization.

2620194387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227457.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 2620194387 is about 51187.8343652083. The cubic root of 2620194387 is about 1378.6197757563.

The spelling of 2620194387 in words is "two billion, six hundred twenty million, one hundred ninety-four thousand, three hundred eighty-seven".