1491238 has 16 divisors (see below), whose sum is σ = 2645280. Its totient is φ = 616896.

The previous prime is 1491233. The next prime is 1491239. The reversal of 1491238 is 8321941.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491233) 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, 1431 + ... + 2242.

It is an arithmetic number, because the mean of its divisors is an integer number (165330).

2^1491238 is an apocalyptic number.

1491238 is a deficient number, since it is larger than the sum of its proper divisors (1154042).

1491238 is a wasteful number, since it uses less digits than its factorization.

1491238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3711.

The product of its digits is 1728, while the sum is 28.

The square root of 1491238 is about 1221.1625608411. The cubic root of 1491238 is about 114.2481002705.

The spelling of 1491238 in words is "one million, four hundred ninety-one thousand, two hundred thirty-eight".