2285787138 has 16 divisors (see below), whose sum is σ = 4576464480. Its totient is φ = 761114016.

The previous prime is 2285787131. The next prime is 2285787149. The reversal of 2285787138 is 8317875822.

It is not an unprimeable number, because it can be changed into a prime (2285787131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197668 + ... + 208911.

It is an arithmetic number, because the mean of its divisors is an integer number (286029030).

Almost surely, 2^2285787138 is an apocalyptic number.

2285787138 is an abundant number, since it is smaller than the sum of its proper divisors (2290677342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2285787138 is a wasteful number, since it uses less digits than its factorization.

2285787138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407521.

The product of its digits is 1505280, while the sum is 51.

The square root of 2285787138 is about 47809.9062747460. The cubic root of 2285787138 is about 1317.2815069023.

The spelling of 2285787138 in words is "two billion, two hundred eighty-five million, seven hundred eighty-seven thousand, one hundred thirty-eight".