1591842426 has 8 divisors (see below), whose sum is σ = 3183684864. Its totient is φ = 530614140.

The previous prime is 1591842419. The next prime is 1591842437. The reversal of 1591842426 is 6242481951.

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

1591842426 is an admirable number.

It is a Curzon 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, 132653530 + ... + 132653541.

It is an arithmetic number, because the mean of its divisors is an integer number (397960608).

Almost surely, 2^1591842426 is an apocalyptic number.

1591842426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1591842426 is a wasteful number, since it uses less digits than its factorization.

1591842426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265307076.

The product of its digits is 138240, while the sum is 42.

The square root of 1591842426 is about 39897.9000199259. The cubic root of 1591842426 is about 1167.6159666059.

The spelling of 1591842426 in words is "one billion, five hundred ninety-one million, eight hundred forty-two thousand, four hundred twenty-six".