1490605 has 8 divisors (see below), whose sum is σ = 1827072. Its totient is φ = 1166928.

The previous prime is 1490603. The next prime is 1490609. The reversal of 1490605 is 5060941.

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

It is a cyclic number.

It is not a de Polignac number, because 1490605 - 2¹ = 1490603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1490605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2937 + ... + 3406.

It is an arithmetic number, because the mean of its divisors is an integer number (228384).

2^1490605 is an apocalyptic number.

It is an amenable number.

1490605 is a deficient number, since it is larger than the sum of its proper divisors (336467).

1490605 is an equidigital number, since it uses as much as digits as its factorization.

1490605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6395.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1490605 is about 1220.9033540784. The cubic root of 1490605 is about 114.2319326562.

The spelling of 1490605 in words is "one million, four hundred ninety thousand, six hundred five".