1258430 has 16 divisors (see below), whose sum is σ = 2303424. Its totient is φ = 494880.

The previous prime is 1258429. The next prime is 1258441. The reversal of 1258430 is 348521.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1258396 and 1258405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422 + ... + 1641.

It is an arithmetic number, because the mean of its divisors is an integer number (143964).

2^1258430 is an apocalyptic number.

1258430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1258430 is a deficient number, since it is larger than the sum of its proper divisors (1044994).

1258430 is a wasteful number, since it uses less digits than its factorization.

1258430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1258430 is about 1121.7976644654. The cubic root of 1258430 is about 107.9633506190.

Subtracting from 1258430 its reverse (348521), we obtain a palindrome (909909).

The spelling of 1258430 in words is "one million, two hundred fifty-eight thousand, four hundred thirty".