1579842 has 48 divisors (see below), whose sum is σ = 3818880. Its totient is φ = 468000.

The previous prime is 1579819. The next prime is 1579867. The reversal of 1579842 is 2489751.

1579842 is a `hidden beast` number, since 1 + 579 + 84 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1579797 and 1579806.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15592 + ... + 15692.

It is an arithmetic number, because the mean of its divisors is an integer number (79560).

2^1579842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1579842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1909440).

1579842 is an abundant number, since it is smaller than the sum of its proper divisors (2239038).

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

1579842 is a wasteful number, since it uses less digits than its factorization.

1579842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 196 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 1579842 is about 1256.9176584009. The cubic root of 1579842 is about 116.4674459441.

Subtracting 1579842 from its reverse (2489751), we obtain a palindrome (909909).

It can be divided in two parts, 157 and 9842, that added together give a palindrome (9999).

The spelling of 1579842 in words is "one million, five hundred seventy-nine thousand, eight hundred forty-two".