1030491 has 24 divisors (see below), whose sum is σ = 1857024. Its totient is φ = 534960.

The previous prime is 1030451. The next prime is 1030493. The reversal of 1030491 is 1940301.

It is not a de Polignac number, because 1030491 - 2¹⁰ = 1029467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1030493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51 + ... + 1436.

It is an arithmetic number, because the mean of its divisors is an integer number (77376).

2^1030491 is an apocalyptic number.

1030491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1030491 is a deficient number, since it is larger than the sum of its proper divisors (826533).

1030491 is a wasteful number, since it uses less digits than its factorization.

1030491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1030491 is about 1015.1310260257. The cubic root of 1030491 is about 101.0062081600.

Adding to 1030491 its reverse (1940301), we get a palindrome (2970792).

It can be divided in two parts, 1030 and 491, that added together give a square (1521 = 39²).

The spelling of 1030491 in words is "one million, thirty thousand, four hundred ninety-one".