2792238381 has 6 divisors (see below), whose sum is σ = 4033233230. Its totient is φ = 1861492248.

The previous prime is 2792238343. The next prime is 2792238401. The reversal of 2792238381 is 1838322972.

2792238381 is a `hidden beast` number, since 279 + 223 + 83 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1752175881 + 1040062500 = 41859^2 + 32250^2 .

It is not a de Polignac number, because 2792238381 - 2⁹ = 2792237869 is a prime.

It is a super-2 number, since 2×2792238381² = 15593190352659002322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2792238481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 155124346 + ... + 155124363.

Almost surely, 2^2792238381 is an apocalyptic number.

It is an amenable number.

2792238381 is a deficient number, since it is larger than the sum of its proper divisors (1240994849).

2792238381 is a wasteful number, since it uses less digits than its factorization.

2792238381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310248715 (or 310248712 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 2792238381 is about 52841.6349198243. The cubic root of 2792238381 is about 1408.1561971938.

The spelling of 2792238381 in words is "two billion, seven hundred ninety-two million, two hundred thirty-eight thousand, three hundred eighty-one".