1225430 has 32 divisors (see below), whose sum is σ = 2350080. Its totient is φ = 459360.

The previous prime is 1225409. The next prime is 1225459. The reversal of 1225430 is 345221.

It is a junction number, because it is equal to n+sod(n) for n = 1225399 and 1225408.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18257 + ... + 18323.

It is an arithmetic number, because the mean of its divisors is an integer number (73440).

2^1225430 is an apocalyptic number.

1225430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225430 is a deficient number, since it is larger than the sum of its proper divisors (1124650).

1225430 is a wasteful number, since it uses less digits than its factorization.

1225430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1225430 is about 1106.9914182143. The cubic root of 1225430 is about 107.0112661733.

The spelling of 1225430 in words is "one million, two hundred twenty-five thousand, four hundred thirty".