1920078426 has 24 divisors (see below), whose sum is σ = 4467121920. Its totient is φ = 548593752.

The previous prime is 1920078409. The next prime is 1920078437. The reversal of 1920078426 is 6248700291.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3265146 + ... + 3265733.

It is an arithmetic number, because the mean of its divisors is an integer number (186130080).

Almost surely, 2^1920078426 is an apocalyptic number.

1920078426 is an abundant number, since it is smaller than the sum of its proper divisors (2547043494).

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

1920078426 is a wasteful number, since it uses less digits than its factorization.

1920078426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6530898 (or 6530891 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1920078426 is about 43818.6995014685. The cubic root of 1920078426 is about 1242.9099249162.

The spelling of 1920078426 in words is "one billion, nine hundred twenty million, seventy-eight thousand, four hundred twenty-six".