1428270 has 16 divisors (see below), whose sum is σ = 3427920. Its totient is φ = 380864.

The previous prime is 1428257. The next prime is 1428281. The reversal of 1428270 is 728241.

It is a self number, because there is not a number n which added to its sum of digits gives 1428270.

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, 23775 + ... + 23834.

It is an arithmetic number, because the mean of its divisors is an integer number (214245).

2^1428270 is an apocalyptic number.

1428270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428270 is an abundant number, since it is smaller than the sum of its proper divisors (1999650).

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

1428270 is a wasteful number, since it uses less digits than its factorization.

1428270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47619.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 1428270 is about 1195.1025060638. The cubic root of 1428270 is about 112.6168662104.

The spelling of 1428270 in words is "one million, four hundred twenty-eight thousand, two hundred seventy".