1285430 has 16 divisors (see below), whose sum is σ = 2329344. Its totient is φ = 510720.

The previous prime is 1285429. The next prime is 1285441. The reversal of 1285430 is 345821.

It is a junction number, because it is equal to n+sod(n) for n = 1285396 and 1285405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1574 + ... + 2246.

It is an arithmetic number, because the mean of its divisors is an integer number (145584).

2^1285430 is an apocalyptic number.

1285430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1285430 is a deficient number, since it is larger than the sum of its proper divisors (1043914).

1285430 is a wasteful number, since it uses less digits than its factorization.

1285430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871.

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

The square root of 1285430 is about 1133.7680538805. The cubic root of 1285430 is about 108.7300223134.

The spelling of 1285430 in words is "one million, two hundred eighty-five thousand, four hundred thirty".