1870020426 has 16 divisors (see below), whose sum is σ = 3741409728. Its totient is φ = 623112000.

The previous prime is 1870020419. The next prime is 1870020473. The reversal of 1870020426 is 6240200781.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1870020393 and 1870020402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38830 + ... + 72441.

It is an arithmetic number, because the mean of its divisors is an integer number (233838108).

Almost surely, 2^1870020426 is an apocalyptic number.

1870020426 is an abundant number, since it is smaller than the sum of its proper divisors (1871389302).

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

1870020426 is a wasteful number, since it uses less digits than its factorization.

1870020426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114077.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 1870020426 is about 43243.7327944755. The cubic root of 1870020426 is about 1232.0134528841.

The spelling of 1870020426 in words is "one billion, eight hundred seventy million, twenty thousand, four hundred twenty-six".