1659460 has 48 divisors (see below), whose sum is σ = 4011840. Its totient is φ = 570240.

The previous prime is 1659457. The next prime is 1659491. The reversal of 1659460 is 649561.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3982 + ... + 4378.

It is an arithmetic number, because the mean of its divisors is an integer number (83580).

2^1659460 is an apocalyptic number.

1659460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1659460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2005920).

1659460 is an abundant number, since it is smaller than the sum of its proper divisors (2352380).

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

1659460 is a wasteful number, since it uses less digits than its factorization.

1659460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1659460 is about 1288.2002949852. The cubic root of 1659460 is about 118.3919742856.

The spelling of 1659460 in words is "one million, six hundred fifty-nine thousand, four hundred sixty".