1284430 has 32 divisors (see below), whose sum is σ = 2695680. Its totient is φ = 431520.

The previous prime is 1284427. The next prime is 1284433. The reversal of 1284430 is 344821.

It is an interprime number because it is at equal distance from previous prime (1284427) and next prime (1284433).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284433) 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 15 ways as a sum of consecutive naturals, for example, 3975 + ... + 4285.

It is an arithmetic number, because the mean of its divisors is an integer number (84240).

2^1284430 is an apocalyptic number.

1284430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1284430 is an abundant number, since it is smaller than the sum of its proper divisors (1411250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1284430 is a wasteful number, since it uses less digits than its factorization.

1284430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1284430 is about 1133.3269607664. The cubic root of 1284430 is about 108.7018194993.

The spelling of 1284430 in words is "one million, two hundred eighty-four thousand, four hundred thirty".