1490239 has 4 divisors (see below), whose sum is σ = 1555056. Its totient is φ = 1425424.

The previous prime is 1490233. The next prime is 1490243. The reversal of 1490239 is 9320941.

1490239 = 157² + 158² + ... + 202².

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1490239 - 2⁵ = 1490207 is a prime.

It is a Duffinian number.

1490239 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32374 + ... + 32419.

It is an arithmetic number, because the mean of its divisors is an integer number (388764).

2^1490239 is an apocalyptic number.

1490239 is a deficient number, since it is larger than the sum of its proper divisors (64817).

1490239 is an equidigital number, since it uses as much as digits as its factorization.

1490239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64816.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1490239 is about 1220.7534558624. The cubic root of 1490239 is about 114.2225824685. Note that the first 3 decimals are identical.

It can be divided in two parts, 14902 and 39, that added together give a palindrome (14941).

The spelling of 1490239 in words is "one million, four hundred ninety thousand, two hundred thirty-nine".