1920220678 has 8 divisors (see below), whose sum is σ = 2880714600. Its totient is φ = 959982480.

The previous prime is 1920220649. The next prime is 1920220699. The reversal of 1920220678 is 8760220291.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43903 + ... + 75946.

It is an arithmetic number, because the mean of its divisors is an integer number (360089325).

Almost surely, 2^1920220678 is an apocalyptic number.

1920220678 is a deficient number, since it is larger than the sum of its proper divisors (960493922).

1920220678 is a wasteful number, since it uses less digits than its factorization.

1920220678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127862.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1920220678 is about 43820.3226596975. The cubic root of 1920220678 is about 1242.9406184639.

The spelling of 1920220678 in words is "one billion, nine hundred twenty million, two hundred twenty thousand, six hundred seventy-eight".