2381920755 has 16 divisors (see below), whose sum is σ = 3892161024. Its totient is φ = 1243328480.

The previous prime is 2381920727. The next prime is 2381920759. The reversal of 2381920755 is 5570291832.

It is a happy number.

It is not a de Polignac number, because 2381920755 - 2⁶ = 2381920691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2381920759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1688601 + ... + 1690010.

It is an arithmetic number, because the mean of its divisors is an integer number (243260064).

Almost surely, 2^2381920755 is an apocalyptic number.

2381920755 is a deficient number, since it is larger than the sum of its proper divisors (1510240269).

2381920755 is a wasteful number, since it uses less digits than its factorization.

2381920755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378666.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 2381920755 is about 48804.9255198694. The cubic root of 2381920755 is about 1335.4955222604.

The spelling of 2381920755 in words is "two billion, three hundred eighty-one million, nine hundred twenty thousand, seven hundred fifty-five".