1490405 has 16 divisors (see below), whose sum is σ = 2069760. Its totient is φ = 1009152.

The previous prime is 1490381. The next prime is 1490429. The reversal of 1490405 is 5040941.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1490381) and next prime (1490429).

It is a cyclic number.

It is not a de Polignac number, because 1490405 - 2¹⁴ = 1474021 is a prime.

It is a Curzon number.

It is a congruent number.

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, 3176 + ... + 3614.

It is an arithmetic number, because the mean of its divisors is an integer number (129360).

2^1490405 is an apocalyptic number.

It is an amenable number.

1490405 is a deficient number, since it is larger than the sum of its proper divisors (579355).

1490405 is an equidigital number, since it uses as much as digits as its factorization.

1490405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1490405 is about 1220.8214447658. The cubic root of 1490405 is about 114.2268234537.

The spelling of 1490405 in words is "one million, four hundred ninety thousand, four hundred five".