2078357842 has 8 divisors (see below), whose sum is σ = 3400949232. Its totient is φ = 944708100.

The previous prime is 2078357803. The next prime is 2078357849. The reversal of 2078357842 is 2487538702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2078357792 and 2078357801.

It is not an unprimeable number, because it can be changed into a prime (2078357849) 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 3 ways as a sum of consecutive naturals, for example, 47235384 + ... + 47235427.

It is an arithmetic number, because the mean of its divisors is an integer number (425118654).

Almost surely, 2^2078357842 is an apocalyptic number.

2078357842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2078357842 is a deficient number, since it is larger than the sum of its proper divisors (1322591390).

2078357842 is a wasteful number, since it uses less digits than its factorization.

2078357842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94470824.

The product of its (nonzero) digits is 752640, while the sum is 46.

The square root of 2078357842 is about 45589.0101011198. The cubic root of 2078357842 is about 1276.1648392600.

The spelling of 2078357842 in words is "two billion, seventy-eight million, three hundred fifty-seven thousand, eight hundred forty-two".