1490945 has 8 divisors (see below), whose sum is σ = 1847040. Its totient is φ = 1154160.

The previous prime is 1490941. The next prime is 1490953. The reversal of 1490945 is 5490941.

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

It is not a de Polignac number, because 1490945 - 2² = 1490941 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1490941) 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, 4655 + ... + 4964.

It is an arithmetic number, because the mean of its divisors is an integer number (230880).

It is a Proth number, since it is equal to 91 ⋅ 2¹⁴ + 1 and 91 < 2¹⁴.

2^1490945 is an apocalyptic number.

It is an amenable number.

1490945 is a deficient number, since it is larger than the sum of its proper divisors (356095).

1490945 is an equidigital number, since it uses as much as digits as its factorization.

1490945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9655.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1490945 is about 1221.0425872999. The cubic root of 1490945 is about 114.2406172517.

The spelling of 1490945 in words is "one million, four hundred ninety thousand, nine hundred forty-five".