1790978342 has 8 divisors (see below), whose sum is σ = 2827860600. Its totient is φ = 848358144.

The previous prime is 1790978341. The next prime is 1790978347. The reversal of 1790978342 is 2438790971.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1790978341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23565467 + ... + 23565542.

It is an arithmetic number, because the mean of its divisors is an integer number (353482575).

Almost surely, 2^1790978342 is an apocalyptic number.

1790978342 is a deficient number, since it is larger than the sum of its proper divisors (1036882258).

1790978342 is a wasteful number, since it uses less digits than its factorization.

1790978342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47131030.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 1790978342 is about 42319.9520557384. The cubic root of 1790978342 is about 1214.4047148532.

The spelling of 1790978342 in words is "one billion, seven hundred ninety million, nine hundred seventy-eight thousand, three hundred forty-two".