2085257742 has 16 divisors (see below), whose sum is σ = 4259250432. Its totient is φ = 680296760.

The previous prime is 2085257737. The next prime is 2085257743. The reversal of 2085257742 is 2477525802.

It is a junction number, because it is equal to n+sod(n) for n = 2085257694 and 2085257703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085257743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3696984 + ... + 3697547.

It is an arithmetic number, because the mean of its divisors is an integer number (266203152).

Almost surely, 2^2085257742 is an apocalyptic number.

2085257742 is an abundant number, since it is smaller than the sum of its proper divisors (2173992690).

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

2085257742 is a wasteful number, since it uses less digits than its factorization.

2085257742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7394583.

The product of its (nonzero) digits is 313600, while the sum is 42.

The square root of 2085257742 is about 45664.6224335645. The cubic root of 2085257742 is about 1277.5755176373.

The spelling of 2085257742 in words is "two billion, eighty-five million, two hundred fifty-seven thousand, seven hundred forty-two".