1659942 has 12 divisors (see below), whose sum is σ = 3596580. Its totient is φ = 553308.

The previous prime is 1659919. The next prime is 1659971. The reversal of 1659942 is 2499561.

It is a junction number, because it is equal to n+sod(n) for n = 1659897 and 1659906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46092 + ... + 46127.

It is an arithmetic number, because the mean of its divisors is an integer number (299715).

2^1659942 is an apocalyptic number.

1659942 is an abundant number, since it is smaller than the sum of its proper divisors (1936638).

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

1659942 is a wasteful number, since it uses less digits than its factorization.

1659942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92227 (or 92224 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 1659942 is about 1288.3873641107. The cubic root of 1659942 is about 118.4034357263.

It can be divided in two parts, 16599 and 42, that added together give a square (16641 = 129²).

The spelling of 1659942 in words is "one million, six hundred fifty-nine thousand, nine hundred forty-two".