1158490 has 8 divisors (see below), whose sum is σ = 2085300. Its totient is φ = 463392.

The previous prime is 1158481. The next prime is 1158491. The reversal of 1158490 is 948511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1147041 + 11449 = 1071^2 + 107^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1158491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57915 + ... + 57934.

2^1158490 is an apocalyptic number.

1158490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1158490 is a deficient number, since it is larger than the sum of its proper divisors (926810).

1158490 is a wasteful number, since it uses less digits than its factorization.

1158490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115856.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1158490 is about 1076.3317332496. The cubic root of 1158490 is about 105.0261461721.

The spelling of 1158490 in words is "one million, one hundred fifty-eight thousand, four hundred ninety".