2381597939 has 8 divisors (see below), whose sum is σ = 2733713760. Its totient is φ = 2032454016.

The previous prime is 2381597899. The next prime is 2381597963. The reversal of 2381597939 is 9397951832.

It is a happy number.

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 2381597939 - 2⁸ = 2381597683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2381597039) 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, 741254 + ... + 744459.

It is an arithmetic number, because the mean of its divisors is an integer number (341714220).

Almost surely, 2^2381597939 is an apocalyptic number.

2381597939 is a deficient number, since it is larger than the sum of its proper divisors (352115821).

2381597939 is a wasteful number, since it uses less digits than its factorization.

2381597939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485949.

The product of its digits is 3674160, while the sum is 56.

The square root of 2381597939 is about 48801.6182006294. The cubic root of 2381597939 is about 1335.4351873676.

The spelling of 2381597939 in words is "two billion, three hundred eighty-one million, five hundred ninety-seven thousand, nine hundred thirty-nine".